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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2096. Отображено 100.
26-07-2012 дата публикации

Multi-laser transmitter optical subassembly

Номер: US20120189323A1
Автор: Bernd Huebner, Xiaojie Xu
Принадлежит: Finisar Corp

Multi-laser transmitter optical subassembly (TOSAs) for an optoelectronic module. In one example embodiment, a method of fabricating a multi-laser TOSA includes various acts. First, first and second optical signals are transmitted from first and second lasers, respectively. Next, the angle of a first minor actively adjusted to reflect the first optical signal toward a first filter that reflects the first optical signal and transmits the second optical signal such that the first and second optical signals are aligned and combined.

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Номер записи: 1
20-09-2012 дата публикации

Filtered fiber optic probe

Номер: US20120236303A1
Автор: Eric T. Marple, Kirk D. Urmey
Принадлежит: Marple Eric T, Urmey Kirk D

The invention provides improved multi-fiber, fiber optic probe assemblies in which the component parts are adapted for rapid assembly with precise alignment. Some embodiments are adapted to illuminate and collect light from a sample at a particular depth while minimizing interference arising from within the probe assembly itself. Also provided are methods for manufacturing the probe assemblies and optical apparatuses including the probe assemblies.

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Номер записи: 2
02-01-2020 дата публикации

Hermetic optical subassembly

Номер: US20200003974A1
Автор: Jeremy Burke, Rand Dannenberg, Robert Ryan Vallance
Принадлежит: Cudoquanta Florida Inc

A hermetic optical subassembly includes an optical bench having a mirror directing optical signals to/from an optical waveguide, a carrier supporting a photonic device, and an intermediate optical bench having a mirror directing optical signals between the photonic device and the optical bench. The optical bench and the intermediate optical bench optically aligns the photonic device to the waveguide along a desired optical path. In one embodiment, the photonic device is an edge emitting laser (EML). The mirror of the optical bench may be passively aligned with the mirror of the intermediate optical bench. The assembled components are hermetically sealed. The body of the optical benches are preferably formed by stamping a malleable metal material to form precise geometries and surface features. In a further aspect, the hermetic optical subassembly integrates a multiplexer/demultiplexer, for directing optical signals between a single optical fiber and a plurality of photonic devices.

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Номер записи: 3
05-01-2017 дата публикации

Optical Channel Monitor With Integral Optical Switch

Номер: US20170005729A1
Автор: Bartolini Glenn, Cahill Michael, Jasapara Jayesh, Koeppen Christopher S.
Принадлежит: II-VI Incorporated

A multiport optical switch (such as an N×1 switch) is used to controllably select a specific incoming optical signal that is to be processed by an associated optical channel monitor (OCM). The OCM includes a tunable optical filter and photodetector arrangement, and is configured to measure the optical spectrum of the incoming optical signal and extract information associated with the various optical channels (wavelengths) forming the incoming optical signal (i.e., power, wavelength, OSNR and the like for each channel). The OCM also includes a signal processing component that generates a pair of output control signals, a first signal to control the wavelength scanning process of the tunable optical filter and a second signal to control the setting of the multiport optical switch. 1. An optical channel monitoring system comprising:a multiport optical switch including a plurality of input ports and a single output port, each input port receiving a separate optical input signal, with each separate optical input signal including a plurality of separate wavelength channels, the multiport optical switch controlled to selectively couple one input port from the plurality of input ports to the single output port;a tunable optical filter coupled to the single output port of the multiport optical switch for receiving the selected optical input signal, the tunable optical filter controlled to selectively pass different wavelength channels at different points in time;an optical photodetector coupled to the output of the tunable optical filter for converting each wavelength channel into an electrical signal equivalent; anda processor component responsive to the electrical signal equivalent for extracting optical characteristic data therefrom for monitoring the performance of the selected optical signal applied as an input to the tunable optical filter, the processor component further configured to generate a first control signal applied as an input to the multiport switch to ...

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Номер записи: 4
12-01-2017 дата публикации

Optical spot array pitch compressor

Номер: US20170010418A1
Автор: Andy Fenglei Zhou, Yao Li, Yuanji Tang
Принадлежит: Alliance Fiber Optic Products Co Ltd

An apparatus including a passive wavelength division multiplexing (WDM) demultiplexer (DeMUX) or a passive WDM multiplexer (MUX), an active photo diode (PD) array or an active laser diode (LD) array, and a compressing device disposed between the passive WDM DeMUX or the passive WDM MUX and the active PD array or the active LD array. The compressing device changes the optical spot pitch of the passive WDM DeMUX or the passive WDM MUX o match the pitch of the active PD array or the active LD array. A compression ratio can be adjusted by changing the incident angle of the incident beam to the compressing device.

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Номер записи: 5
12-01-2017 дата публикации

Integrated Lens-Array-On-Substrate For Optical Coupling System And Fabrication Method Thereof

Номер: US20170010427A1
Автор: Pan Dong, Shi Tuo, Yan Shipeng, Zhang Nai
Принадлежит:

An imprinting method for forming an integrated optical coupling device on wafer level may include: providing a substrate, with a reflection coating disposed thereon; providing an imprinting mold, with void regions shaped according to a designed lens profile; forming a molding material on the substrate; pressing the imprinting mold on the molding material on the substrate; curing the molding material into a cured molding material; removing the imprinting mold; depositing an anti-reflection film on the cured molding material; and dicing to form an integrated optical coupling device. 1. An imprinting method for forming an integrated optical coupling device on wafer level , comprising:providing a substrate, with a reflection coating disposed thereon;providing an imprinting mold, with void regions shaped according to a designed lens profile;forming a molding material on the substrate;pressing the imprinting mold on the molding material on the substrate;curing the molding material into a cured molding material;removing the imprinting mold;depositing an anti-reflection film on the cured molding material; anddicing to form an integrated optical coupling device.2. The imprinting method of claim 1 , wherein the substrate comprises a glass substrate claim 1 , a silicon substrate claim 1 , a silicon-on-insulator substrate claim 1 , a silica substrate claim 1 , a sapphire substrate claim 1 , a gallium-arsenide substrate claim 1 , or an indium-phosphide substrate.3. The imprinting method of claim 1 , wherein a material of the imprinting mold comprises silicon claim 1 , tungsten carbide claim 1 , silicon carbide claim 1 , silicon nitride claim 1 , titanium carbide claim 1 , tungsten-cobalt alloy carbide claim 1 , sapphire claim 1 , or a combination thereof.4. The imprinting method of claim 1 , wherein a material of the molding material comprises polymer claim 1 , resin claim 1 , polyimide claim 1 , epoxy claim 1 , or a combination thereof.5. The imprinting method of claim 1 , ...

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Номер записи: 6
09-01-2020 дата публикации

Bi-directional optical sub-assembly, optical network unit, optical line terminal, and passive optical network system

Номер: US20200012055A1
Автор: Jian Chen, Shengping Li, Zhicheng Ye
Принадлежит: Huawei Technologies Co Ltd

Embodiments relate to the field of optical communications technologies. The bi-directional optical sub-assembly includes a transmitter optical path sub-assembly, a receiver optical sub-assembly, a wavelength division multiplexing sub-assembly, and an optical fiber interface. The transmitter optical path sub-assembly is configured to: generate emitted light and provide the emitted light for the wavelength division multiplexing sub-assembly; the wavelength division multiplexing sub-assembly is configured to: transparently transmit, to the optical fiber interface, the emitted light from the transmitter optical path sub-assembly, and reflect, to the receiver optical sub-assembly, received light from the optical fiber interface; the optical fiber interface is configured to: transmit, to the outside, the emitted light from the wavelength division multiplexing sub-assembly, and transmit, to the wavelength division multiplexing sub-assembly, received light received from the outside; and the receiver optical sub-assembly is configured to receive the received light reflected by the wavelength division multiplexing sub-assembly.

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Номер записи: 7
18-01-2018 дата публикации

Wavelength Division Multiplexer/Demultiplexer with Flexibility of Optical Adjustment

Номер: US20180017735A1
Автор: Bai Yu Sheng, Miao Rongsheng
Принадлежит:

Multiplexer and demultiplexer apparatuses are disclosed herein. In various embodiments, a demultiplexer apparatus comprises a receptacle having a collimate lens and configured to receive an inlet light, a substrate, a reflector mounted to the substrate and configured to reflect the inlet light. The reflector is either fixed or adjustable during assembly. The demultiplexer apparatus also includes a demultiplexer block coupled to the substrate and configured to receive the inlet light from the reflector and separate the inlet light into multiple wavelengths, a folding prism coupled to the substrate that receives and refracts the multiple wavelengths through the substrate, and a focal lens array coupled to the substrate to receive the focus of the multiple wavelengths. 1. An optical wavelength division demultiplexer , comprising:a receptacle having a collimate lens and configured to receive an inlet light;a substrate;a reflector mounted to the substrate and configured to reflect the inlet light;a demultiplexer block coupled to the substrate and configured to receive the inlet light from the reflector, wherein the demultiplexer block separates the inlet light into multiple wavelengths;a folding prism coupled to the substrate and configured to receive the multiple wavelengths from the demultiplexer block and refract the multiple wavelengths through the substrate; anda focal lens array coupled to the substrate substantially opposite the folding prism and configured to receive and focus the refracted multiple wavelengths.2. The optical wavelength division demultiplexer of claim 1 , wherein the reflector is a fixed reflector or an adjustably-affixed reflector.3. The optical wavelength division demultiplexer of claim 1 , wherein the reflector is either an external reflector or an internal reflector.4. The optical wavelength division demultiplexer of claim 3 , wherein a surface of the reflector is coated with at least one of a high reflective coating or a metal layer.5. The ...

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Номер записи: 8
21-01-2021 дата публикации

Tunable filter and optical communication apparatus

Номер: US20210018663A1
Автор: Yasuki Sakurai
Принадлежит: Santec Corp

A tunable filter includes: a first transparent substrate including a first reflective surface; a second transparent substrate including a second reflective surface that opposes the first reflective surface; and a supporting member, connected to the first transparent substrate, that supports the second transparent substrate on the first transparent substrate so that the second reflective surface is disposed at a position separated from the first reflective surface in a normal direction of the first reflective surface. A cavity between the first reflective surface and the second reflective surface forms an etalon. A relative position of the second transparent substrate with respect to the first transparent substrate changes due to thermal expansion of the supporting member, and a length of the cavity changes in the normal direction.

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Номер записи: 9
21-01-2021 дата публикации

ENDOSCOPIC LED LIGHT SOURCE HAVING A FEEDBACK CONTROL SYSTEM

Номер: US20210018703A1
Автор: FEINGOLD Benjamin Hyman, HUI Simon S., NAMBAKAM Vasudev
Принадлежит: STRYKER CORPORATION

A method for providing light to an endoscope includes emitting light from a plurality of light emitting diodes, filtering the light with a plurality of dichroic filter elements, collimating and mixing light received from the dichroic filter elements into a combined light, sensing the combined light at a color sensor and determining a sensed color balance of the combined light, comparing the sensed color balance with a predetermined color balance, and varying at least one power signal to control a light intensity output by at least one of the plurality of light emitting diodes so that the sensed color balance corresponds to the predetermined color balance. 1. (canceled)2. A method for providing light to an endoscope , the method comprising:emitting light from a plurality of light emitting diodes;filtering the light with a plurality of dichroic filter elements;collimating and mixing light received from the dichroic filter elements into a combined light;sensing the combined light at a color sensor and determining a sensed color balance of the combined light;comparing the sensed color balance with a predetermined color balance; andvarying at least one power signal to control a light intensity output by at least one of the plurality of light emitting diodes so that the sensed color balance corresponds to the predetermined color balance.3. The method of claim 2 , wherein the plurality of light emitting diodes comprises at least one each of red claim 2 , green and blue light emitting diodes.4. The method of claim 2 , wherein the plurality of light emitting diodes comprises a combination of white and red light emitting diodes.5. The method of claim 2 , comprising conveying the combined light to the color sensor via at least one optical fiber.6. The method of claim 2 , wherein the color sensor is located in an illuminator that comprises the plurality of light emitting diodes.7. The method of claim 2 , wherein the color sensor comprises an image sensor of an endoscopic camera ...

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Номер записи: 10
28-01-2016 дата публикации

Integrated Lens-Array-On-Substrate For Optical Coupling System And Fabrication Method Thereof

Номер: US20160025932A1
Автор: Dong Pan, Nai ZHANG, Shipeng Yan, Tuo SHI
Принадлежит: SiFotonics Technologies Co Ltd Cayman Islands, SiFotonics Technologies USA Inc

An integrated optical coupling device may include a substrate, a coating layer disposed on the substrate, and a prism disposed on the coating layer. The prism may include a first surface and a second surface. The integrated optical coupling device may also include a first lens disposed on the first surface of the prism, a second lens disposed on the second surface of the prism, and an anti-reflection coating layer disposed on the first lens and the second lens.

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Номер записи: 11
24-01-2019 дата публикации

SEMICONDUCTOR DEVICE

Номер: US20190025518A1
Автор: CHO Keun Yeong, JI Ho Chul
Принадлежит:

A semiconductor device includes a first device and a second device. The first device includes at least one waveguide on a first substrate. The second device is on the first device and includes at least one optical fiber on an upper surface of a second substrate, a reflector on the upper surface of the second substrate, and a lens on a lower surface of the second substrate below the reflector. The at least one waveguide to carry light from the reflector and passing through the lens for output to the optical fiber. 1. A semiconductor device , comprising:a first device including at least one waveguide on a first substrate; anda second device on the first device and including at least one optical fiber on an upper surface of a second substrate, a reflector on the upper surface of the second substrate, and a lens on a lower surface of the second substrate below the reflector, the at least one waveguide to carry light from the reflector and passing through the lens.2. The semiconductor device as claimed in claim 1 , wherein at least one of the first device and the second device includes an optoelectronic device.3. The semiconductor device as claimed in claim 1 , wherein:the at least one waveguide includes a plurality of waveguides, andthe plurality of waveguides provide respective transmission paths for optical signals of different wavelengths.4. The semiconductor device as claimed in claim 3 , wherein at least one of the first device and the second device includes a wavelength division multiplexing (WDM) device connected between the at least one optical fiber and the plurality of waveguides.5. The semiconductor device as claimed in claim 4 , wherein the WDM device includes at least one of a WDM multiplexer to generate an output optical signal based on the optical signals transmitted through the plurality of waveguides claim 4 , the output optical signal to be output to the optical fiber claim 4 , and a WDM demultiplexer to generate the optical signals of different ...

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Номер записи: 12
28-01-2016 дата публикации

OPTICAL TEST DEVICE AND SYSTEMS

Номер: US20160028476A1
Автор: Dugan Andrew, JR. John F., Paredes Salvador, Ratterree Gary, Storey Jeffrey Kendall, Waters
Принадлежит: LEVEL 3 COMMUNICATIONS, LLC

Systems, methods, and devices are disclosed for monitoring optical communications between a managed location and a remote location. In particular, an optical signal is transmitted over an optical fiber and passed-through a test device. A portion of the optical signal is filtered from the original optical signal and passed to a monitoring unit. The monitoring unit may instruct one or more switches in the test device to loop the optical signal back toward the managed location. Subsequently, testing and monitoring may be performed at the managed location. The device may provide a test output or may transmit the information to the managed location. 1. An optical test device comprising:at least one optical filter coupled with a first optical fiber, the at least one first optical filter configured to allow an optical signal on the first optical fiber to pass from the first optical fiber to a second optical fiber;at least one monitoring device coupled with the at least one optical filter, the at least one monitoring device configured to receive a portion of the optical signal to test the optical signal;a first switch in communication with the first optical fiber, the first switch configured to switch the optical signal on the first optical fiber to a third optical fiber for loop-back testing; andwherein the monitoring device is further configured to detect a signal and toggle the first switch to switch the optical signal on the first optical fiber to the third optical fiber when the signal is detected.2. The optical device of claim 1 , wherein the first switch is interposed between the first optical fiber and the second optical fiber and allows the optical signal to pass from the first optical fiber to the second optical fiber in a first state and switches the optical signal to the third optical fiber for loop-back testing.3. The optical test device of claim 1 , further comprising a second switch interposed between a fourth optical fiber and the third optical fiber claim 1 ...

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Номер записи: 13
02-02-2017 дата публикации

MULTIWAVELENGTH OPTICAL SUB-ASSEMBLY MODULE

Номер: US20170031100A1
Автор: Han Sae Young, So Sun Young, Son Jeong Kwon, Yang Gye Mo
Принадлежит: Optowell Co., Ltd.

A multiwavelength optical sub-assembly module including a housing to be connected to an optical cable, a plurality of optical filter units coupled to the housing and configured to guide optical signals, a plurality of transceiver units coupled to the housing and configured to receive the optical signals through the optical filter units or transmit the optical signals to the optical filter units, and a substrate coupled to each of the transceiver units. Thus, distortion of an optical signal is suppressed, and the defect rate of a product is allowed to be decreased by evaluating reliability. 1. A multiwavelength optical sub-assembly module comprising:a housing to be connected to an optical cable;a plurality of optical filter units coupled to the housing and configured to guide optical signals;a plurality of transceiver units coupled to the housing and configured to receive the optical signals through the optical filter units or transmit the optical signals to the optical filter units; anda substrate coupled to each of the transceiver units.2. The multiwavelength optical sub-assembly module of claim 1 , wherein the housing includes:a body unit;a plurality of filter installation units formed on the body unit and having the optical filter units installed thereon; anda lens unit formed on the body unit and configured to arrange an optical signal transceived through the optical cable.3. The multiwavelength optical sub-assembly module of claim 2 , wherein the filter installation unit is coupled to an edge of the optical filter unit so as not to interfere with the optical signal.4. The multiwavelength optical sub-assembly module of claim 2 , wherein the optical filter unit includes:a lens light guide unit for transmission disposed on a straight line with the lens unit and configured to pass an optical signal having a set wavelength or more and to reflect an optical signal having a wavelength less than the set wavelength to guide the optical signal to the lens unit;an optical ...

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Номер записи: 14
01-02-2018 дата публикации

OPTICAL DEMULTIPLEXER

Номер: US20180031768A1
Автор: Hirai Yoshihisa, Katouno Hirotaka, MIYATA Ryusuke, SUZUKI Junichi
Принадлежит:

An optical demultiplexer that separates, for each signal wavelength, signal light a plurality of wavelengths of which is multiplexed, the optical demultiplexer including: an antireflection film disposed at on an incident surface of a glass block; filters disposed on an emission surface of the glass block, the filters transmit light of a wavelength predetermined for each signal wavelength included in the signal light and reflect light of a wavelength other than the transmitting wavelength toward the incident surface; and a reflection film disposed on the incident surface of the glass block, wherein processing to reduce reflection of the reflection light into the glass block is applied on an optical path of the reflection light reflected by the filter disposed at an end away from the antireflection film. 1. An optical demultiplexer that separates , for each signal wavelength , signal light having a plurality of wavelengths which is multiplexed , the optical demultiplexer comprising:an antireflection film disposed at a first portion of a first surface of a glass block where the signal light enters;a plurality of filters disposed on a second surface of the glass block opposite to the first surface, wherein each of the plurality of filters transmits light of a wavelength predetermined for each signal wavelength included in the signal light, and wherein each of the plurality of filters reflects light of a wavelength other than the transmitting wavelength toward the first surface; anda reflection film disposed at a second portion of the first surface of the glass block, wherein the reflection film reflects the light of a wavelength other than the transmitting wavelength reflected by the filter toward the first surface back toward the second surface of the glass block,wherein light not transmitted by any of the plurality of filters and reflected toward the first surface is processed to reduce reflection thereof into the glass block, and wherein the processing is applied to ...

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Номер записи: 15
09-02-2017 дата публикации

Optical comb filter

Номер: US20170038535A1
Автор: Liancheng Li, Shuliang Huang, Yimin Hua
Принадлежит: O Net Communications Shenzhen Ltd

An optical comb filter, comprising an input/output collimator ( 50 ), an output collimator ( 60 ), a spectroscope ( 10 ), and first, second and third GT resonant cavities ( 20, 30, 40 ), wherein each GT resonant cavity comprises a transparent solid block coated with a membrane layer and a spacing part, a through hole is provided on the transparent solid block, and the transparent solid block and the spacing part form a hollow cavity; and rectangular orientation of an insertion loss curve is realized, and the bandwidth utilization rate is high.

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Номер записи: 16
08-02-2018 дата публикации

Manufacturing method and manufacturing apparatus for optical multiplexer

Номер: US20180039034A1
Автор: Hidekazu Kodera, Masaya Shimono
Принадлежит: Mitsubishi Electric Corp

The present invention relates to a manufacturing method for an optical multiplexer provided with: a substrate having a first main surface and a second main surface that are parallel to each other; a mirror disposed on the first main surface; and an optical filter disposed on the second main surface. This method includes: a step for placing the mirror on the first main surface of the substrate, performing angular adjustment between the substrate and the mirror using an autocollimator, and then fixing the mirror to the substrate; and a step for placing the optical filter on the second main surface of the substrate, performing angular adjustment between the substrate and the optical filter using the autocollimator, and then fixing the optical filter to the substrate.

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Номер записи: 17
03-03-2022 дата публикации

METHOD OF MANUFACTURING OPTICAL MULTIPLEXER AND OPTICAL MULTIPLEXER MANUFACTURED THEREBY

Номер: US20220066102A1
Автор: KANG Hyun Jong, KANG Sang Do, OH Seung Keun, RYU Chang Hoon
Принадлежит:

An optical multiplexer (MUX) according to an embodiment of the present disclosure includes a base part having a plate-shape having a first surface and a second surface opposite to the first surface, a microarray lens layer integrally formed on the first surface of the base part, the microarray lens layer including microlens layers being multiple aspherical surface-shaped, and multiple optical blocks integrally formed on the second surface of the base part and formed at respective positions corresponding to the microlens layers.

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Номер записи: 18
13-02-2020 дата публикации

OPTICAL INTERCONNECT APPARATUS AND SYSTEM

Номер: US20200049917A1
Автор: Huang Xiaodong, Li Jinghui, LIU Yuan, Zhang Haiquan
Принадлежит: Auxora,Inc.

Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus. 1. An optical interconnect apparatus comprising:an optical signal path;a first set of fibers attached to a first end of said optical signal path through a first wavelength-division-multiplexing (WDM) filter, said first WDM filter being between said first set of fibers and said first end of said optical signal path; anda second set of fibers attached to a second end of said optical signal path through a second WDM filter, said second WDM filter being between said second set of fibers and said second end of said optical signal path,wherein at least the first set of fibers is a first ribbon fiber, andwherein the first WDM filter is a thin-film based WDM filter and wherein an optical signal propagating from one of said first set of fibers to said first end of said optical signal path through said thin-film based WDM filter experiences less than 0.5 dB total insertion loss, the less then 0.5 dB total insertion loss being associated with, and enabled by, the use of said thin-film based WDM filter.2. The apparatus of claim 1 , wherein said first ribbon fiber has between 12 and 24 individual fibers and is attached to a MPO/MTP connector.3. The apparatus of claim 1 , wherein the second set of fibers is a second ...

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Номер записи: 19
13-02-2020 дата публикации

OPTICAL INTERCONNECT APPARATUS AND SYSTEM

Номер: US20200049918A1
Автор: Huang Xiaodong, Li Jinghui, LIU Yuan, Zhang Haiquan
Принадлежит: Auxora, Inc.

Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. An optical interconnect kit comprising:a wavelength-division-multiplexing (WDM) filter having a plurality of optical input ports and a single optical output port; anda ribbon fiber attached to the WDM filter at the plurality of optical input ports,wherein the ribbon fiber includes between 12 and 24 individual fibers with a MPO/MTP connector at the end thereof, andwherein a plurality of optical signals coming from said between 12 and 24 individual fibers of said ribbon fiber propagates, via said plurality of optical input ports, into said WDM filter within where said plurality of optical signals are combined into a composite optical signal that propagates towards said single optical output port, andwherein the WDM filter is a thin-film based WDM filter that receives said plurality of optical signals and combines them into said composite optical signal launched into an optical signal path that is optically connected to said single optical output port, and wherein said thin-film based WDM filter is made of a plurality of individual single wavelength thin-film ...

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Номер записи: 20
22-02-2018 дата публикации

OVERMOLDED FILTERS

Номер: US20180052266A1
Автор: Mathai Sagi Varghese, Rosenberg Paul Kessler, Tan Michael Renne Ty
Принадлежит: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

In the examples provided herein, an apparatus has an optically transparent block having a filter surface. The apparatus also has two or more filters, where each of the filters has thin films fabricated on an optically transparent substrate, and further wherein the thin films of the filters are coupled to the filter surface. Additionally, the apparatus has an optically transparent overmold material encasing the two or more filters, where the overmold material fills a volume between and above neighboring ones of the two or more filters. 1. An apparatus comprising:an optically transparent block having a filter surface;two or more filters, wherein each of the filters comprises thin films fabricated on an optically transparent substrate, and further wherein the thin films of the filters are coupled, directly or indirectly, to the filter surface; andan optically transparent overmold material encasing the two or more filters, wherein the overmold material fills a volume between and above neighboring ones of the two or more filters.2. The apparatus of claim 1 , wherein a refractive index of the overmold material is within a predetermined range of a refractive index of the substrates of the two or more filters.3. The apparatus of claim 1 , wherein the overmold material has a first surface and a second surface claim 1 , wherein the first surface contacts the filter surface of the block claim 1 , and the second surface is away from the filter surface claim 1 , wherein the second surface is molded to direct light entering or exiting the overmold material at a particular angle claim 1 , and further wherein the apparatus further comprises an anti-reflection coating on the second surface.4. The apparatus of claim 1 , further comprising alignment features coupled to the overmold material to position the two or more filters in a first direction perpendicular to the filter surface and in a second direction perpendicular to the first direction.5. The apparatus of claim 4 , wherein the ...

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Номер записи: 21
22-02-2018 дата публикации

OPTICAL ZIG-ZAGS

Номер: US20180052284A1
Автор: Mathai Sagi, Matres Joaquin, Rosenberg Paul Kessler, Sorin Wayne Victor, Tan Michael Renee Ty
Принадлежит:

An example device in accordance with an aspect of the present disclosure includes a slab to transmit light, and a plurality of lenses and filters disposed on first and second surfaces of the slab. The lenses include an anti-reflective coating on at least one of the plurality of lenses at an end of the slab to couple light through the anti-reflective coating, and a reflective coating disposed on remaining ones of the plurality of lenses to cause the lenses to reflect light. The filters are offset from the lenses to form an optical zig-zag. 1. A device comprising:a slab to transmit light;a plurality of lenses disposed on a first surface of the slab;an anti-reflective coating, disposed on at least one of the plurality of lenses of the slab to couple light through the anti-reflective coating;a reflective coating disposed on remaining ones of the plurality of lenses to cause the lenses to reflect light; anda plurality of filters associated with a corresponding plurality of wavelengths, disposed on a second surface of the slab opposite the first surface, wherein the plurality of filters are offset from the plurality of lenses to form an optical zig-zag.2. The device of claim 1 , wherein the plurality of lenses are integrally formed of a portion of the slab based on etching a portion of the first surface of the slab into the plurality of lenses.3. The device of claim 1 , further comprising a waveguide layer coupled to the slab in a planar arrangement substantially parallel with the slab claim 1 , to perform at least one of i) directing light from the waveguide layer at a planar orientation into the slab at an angled orientation claim 1 , and ii) receiving light from the slab at an angled orientation into the waveguide layer at a planar orientation.4. The device of claim 3 , wherein the waveguide layer includes a plurality of mirrors to direct the light that is to pass between the waveguide layer and the slab.5. The device of claim 3 , wherein the waveguide layer includes a ...

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Номер записи: 22
14-02-2019 дата публикации

Method And System For A Free Space CWDM MUX/DEMUX For Integration With A Grating Coupler Based Silicon Photonics Platform

Номер: US20190052362A1
Автор: Mark Peterson, Peter De Dobbelaere, Subal Sahni
Принадлежит: Luxtera LLC

Methods and systems for a free space CWDM MUX/DEMUX for integration with a grating coupler based silicon platform may include an optical assembly comprising a lens array and a plurality of thin film filter splitters having angled reflective surfaces. The optical assembly may be operable to receive an input optical signal comprising a plurality of optical signals at different wavelengths via an optical fiber, focus the input optical signal onto a first thin film filter splitter, reflect a first of the optical signals into the lens array and passing others to a second thin film filter splitter, and reflect a second optical signal into the lens array and passing others to a third of the plurality of thin film filter splitters.

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Номер записи: 23
14-02-2019 дата публикации

Method And System For A Free Space CWDM MUX/DEMUX For Integration With A Grating Coupler Based Silicon Photonics Platform

Номер: US20190052391A1
Автор: Mark Peterson, Peter De Dobbelaere, Subal Sahni
Принадлежит: Luxtera LLC

Methods and systems for a free space CWDM MUX/DEMUX for integration with a grating coupler based silicon platform may include an optical assembly coupled to a photonic chip. The optical assembly includes a lens array on the top surface of the chip, an angled mirror, a plurality of transparent spacers, and a plurality of thin film filters. The optical assembly may receive an input optical signal comprising a plurality of optical signals at different wavelengths via an optical fiber coupled to the optical assembly, communicate the plurality of optical signals through a first of the plurality of transparent spacers, pass a first of the plurality of optical signals through a corresponding one of the plurality of thin film filters while reflecting others of the plurality of optical signals back into the first of the plurality of transparent spacers, and reflect the others of the plurality of signals towards a second of the plurality of thin film filters.

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Номер записи: 24
22-02-2018 дата публикации

EXTENDED BRANCHING DEVICE AND CONTROL METHOD OF THE SAME

Номер: US20180054271A1
Автор: Abe Ryota
Принадлежит: NEC Corporation

In order to provide an extended branch device in which construction work is easy and communication is not significantly affected by construction work, and a method for controlling the extended branch device, the extended branch device of the present invention is provided with: a first branch unit provided with a first port coupled to a first terminal station, a second port coupled to a second terminal station, a third port, a fourth port, and a switch for coupling the first port with the second or third port and coupling the second port with the fourth port; and a first separation unit provided with a fifth port coupled to the third port, a sixth port coupled to the fourth port, and a seventh port coupled to a third terminal station, the first separation unit outputting, from the sixth port, an optical signal having a first wavelength among the optical signals inputted from the fifth port, and outputting, from the seventh port, an optical signal having a second wavelength among the optical signals inputted from the fifth port. The extended branch device is further provided with a second branch unit configured so as to be separable from the first branch unit. 6. The extended branching device according to claim 1 , further comprising:a third branching circuit disposed between the second branching circuit and the third terminal station,the third branching circuit comprising a ninth port coupled to the seventh port, a tenth port coupled to the eighth port, an eleventh port coupled to the third terminal station, and a second separating circuit configured to output from the tenth port a light signal of a third wavelength among light signals inputted from the ninth port and outputting from the eleventh port a light signal of a fourth wavelength among the light signals inputted from the ninth port,the third branching circuit being configured to be separable from the first branching circuit and the second branching circuit.9. A control method of an extended branching device ...

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Номер записи: 25
01-03-2018 дата публикации

Flow cytometer

Номер: US20180059000A1
Автор: Yong Qin Chen
Принадлежит: Iris International Inc

The disclosed flow cytometer includes a wavelength division multiplexer (WDM). The WDM includes an extended light source providing light that forms an object, a collimating optical element that captures light from the extended light source and projects a magnified image of the object as a first light beam, and a first focusing optical element configured to focus the first light beam to a size smaller than the object of the extended light source to a first semiconductor detector. The disclosed flow cytometer further includes a composite microscope objective to direct light emitted by a particle in a flow channel in a viewing zone of the composite microscope to the extended light source, a fluidic system and a peristaltic pump configured to supply liquid sheath and liquid sample to the flow channel, and a laser diode system to illuminate the particle in the flow channel.

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Номер записи: 26
01-03-2018 дата публикации

FLOW CYTOMETER

Номер: US20180059001A1
Автор: Chen Yong Qin
Принадлежит:

The disclosed flow cytometer includes a wavelength division multiplexer (WDM). The WDM includes an extended light source providing light that forms an object, a collimating optical element that captures light from the extended light source and projects a magnified image of the object as a first light beam, and a first focusing optical element configured to focus the first light beam to a size smaller than the object of the extended light source to a first semiconductor detector. The disclosed flow cytometer further includes a composite microscope objective to direct light emitted by a particle in a flow channel in a viewing zone of the composite microscope to the extended light source, a fluidic system and a peristaltic pump configured to supply liquid sheath and liquid sample to the flow channel, and a laser diode system to illuminate the particle in the flow channel. 1363.-. (canceled)364. A flow cytometer having a laser diode (LD) system , the LD system comprising:an LD for emitting a diverging beam of light from an edge thereof, the diverging beam of light having an elliptically-shaped cross-sectional profile with both a major axis and a minor axis;a collimating lens configured to convert the diverging beam of light emitted from the LD into a collimated elliptical beam of light, wherein the minor axis of the collimated elliptical beam of light is oriented parallel to a direction in which particles pass through a viewing zone;a beam compressing optical element configured to reduce a size of the collimated elliptical beam of light at the viewing zone whereby a width of the collimated elliptical beam of light oriented perpendicular to the direction in which the particles pass through the viewing zone is less than a width of a liquid sheath flow; anda cylindrical focusing element positioned adjacent to the viewing zone with an axis of the cylindrical focusing element being oriented perpendicular to the direction in which the particles pass through the viewing zone ...

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Номер записи: 27
01-03-2018 дата публикации

Optical component assembly with a vertical mounting structure for multi-angle light path alignment and an optical subassembly using the same

Номер: US20180059340A1
Автор: Chong Wang, Justin Lii, Kai-Sheng Lin
Принадлежит: Applied Optoelectronics Inc

In an embodiment, an optical component assembly is disclosed and is configured to be at least partially disposed within at least one first opening of an optical subassembly housing. The at least one optical component assembly comprising a base extending from a first end to a second end along a longitudinal axis, and a vertical mount disposed on the base and including a first surface that provides a mounting region to couple to an optical component, the first surface defining a vertical axis that extends substantially upright from the base and a horizontal axis that is angled relative to the longitudinal axis of the base at a first angle, the vertical mount further providing a channel that extends through the vertical mount, wherein the channel provides an optical pathway angled relative to the first surface at the first angle, the first angle being substantially between about 15 and 75 degrees.

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Номер записи: 28
02-03-2017 дата публикации

Receiver optical subassembly (rosa) housing with sidewall receptacle to provide electrical isolation between an adjacent transmitter optical subassembly (tosa) in a transceiver housing

Номер: US20170059394A1
Автор: I-Lung Ho, Jun Zheng, Kai-Sheng Lin
Принадлежит: Applied Optoelectronics Inc

A multi-channel receiver optical subassembly (ROSA) including at least one sidewall receptacle configured to receive and electrically isolate an adjacent multi-channel transmitter optical subassembly (TOSA) is disclosed. The multi-channel ROSA includes a housing with at least first and second sidewalls, with the first sidewall being opposite the second sidewall and including at least one sidewall opening configured to fixedly attach to photodiode assemblies. The second sidewall includes at least one sidewall receptacle configured to receive at least a portion of an optical component package, such as a transistor outline (TO) can laser package, of an adjacent multi-channel TOSA, and provide electrical isolation between the ROSA housing and the TOSA within an optical transceiver. The sidewall receptacle can include non-conductive material in regions that directly or otherwise come into close proximity with the optical component package of the adjacent TOSA.

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Номер записи: 29
04-03-2021 дата публикации

OPTICAL MODULE AND OPTICAL COMMUNICATION NETWORK SYSTEM HAVING THE SAME

Номер: US20210063653A1
Автор: Kim KyungEun, PARK Sahnggi
Принадлежит: OPROCESSOR INC

The present invention includes a substrate, an optical waveguide on the substrate, a light source configured to provide light into the optical waveguide, and a prism between the light source and the optical waveguide. The light source includes a lens. 1. An optical module comprising:a substrate;an optical waveguide on the substrate;a light source configured to provide light into the optical waveguide; anda prism between the light source and the optical waveguide,wherein the light source comprises a lens.2. The optical module of claim 1 , wherein the lens comprises a base part having a shape of a flat plate and a semispherical protrusion part protruding from the base part toward the prism.3. The optical module of claim 1 , wherein the light source comprises an adhesive layer covering the lens and a light transmission part on the adhesive layer.4. The optical module of claim 1 ,wherein the light source further comprises a light generation part configured to emit light toward the lens, {'br': None, 'i': F', 'R, '·tan(½·θ2)<\u2003\u2003(1)'}, 'wherein the lens satisfies Equation (1) below.'}{'b': '2', '(where F denotes a focal distance of the lens, θ denotes a radiation angle of the light emitted from the light generation part, and R denotes a radius of the lens).'}5. The optical module of claim 1 , wherein a radius of the lens is about 1 μm to about 100 μm.6. The optical module of claim 1 , wherein a refractive index of the lens is about 1.55 to about 2.5 claim 1 , and a refractive index of the adhesive layer is about 1.3 to about 1.55.7. The optical module of claim 1 , wherein the lens comprises at least one of SiC claim 1 , GaN claim 1 , SiN claim 1 , TiN claim 1 , LiNbO claim 1 , TiO claim 1 , ZnSe claim 1 , or polyimide.8. The optical module of claim 1 , further comprising an anti-reflection film covering a lower surface and an inclined plane of the prism.9. The optical module of claim 1 , wherein the light that has passed through the lens is parallel light.10. An ...

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Номер записи: 30
01-03-2018 дата публикации

Techniques for reducing electrical interconnection losses between a transmitter optical subassembly (tosa) and associated driver circuitry and an optical transceiver system using the same

Номер: US20180062756A1
Автор: Chong Wang, I-Lung Ho, YongXuan LIANG
Принадлежит: Applied Optoelectronics Inc

Techniques are disclosed for providing relatively short distances between multi-channel transmitter optical subassemblies (TOSAs) and associated transmit connecting circuit in order to reduce losses due to signal propagation delays, also sometimes referred to as signal flight time delays. In an embodiment, a TOSA includes a plurality of laser assemblies disposed along a same sidewall of the TOSA along a longitudinal axis. The TOSA may be disposed within an optical transceiver housing in a transverse orientation, whereby a longitudinal center line of the multi-channel TOSA is substantially perpendicular to the longitudinal axis of the optical transceiver housing. The TOSA may be positioned adjacent an end of the optical transceiver housing having a transmit connecting circuit. Thus each of the plurality of laser assemblies may be positioned at a relatively short distance, e.g., 120 microns or less, away from the transmit connecting circuit.

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Номер записи: 31
02-03-2017 дата публикации

OPTICAL TRANSCEIVER MODULE WITH DUAL BAND PASS WDM COUPLER EMBEDDED THEREIN

Номер: US20170063485A1
Автор: CHOI Jin-Soo, KWON Yoon-Koo, LEE Dong-Hyun
Принадлежит:

Provided is an optical transceiver module having a dual band pass WDM coupler embedded therein, wherein the dual band pass WDM coupler provides pass bands for selectively passing a transmission signal output from an optical transmitting unit, and an optical signal having a specific wavelength received by an optical receiving unit among optical signals input through a common port. According to the present invention, a size and cross-talk of the optical transceiver module may be reduced, and the optical transceiver module may be used as a video transceiver in an optical subscriber network according to an ITU-RG.983.3 standard. 1. An optical transceiver module having a dual band pass wavelength division multiplexing (WDM) coupler embedded therein , the optical transceiver module comprising:the dual band pass WDM coupler including a common port, a C lens converting optical signals input to the common port into parallel light, a dual band pass WDM filter passing an optical signal having a specific wavelength among the optical signals converted into the parallel light by the C lens and reflecting optical signals having other wavelengths, and a reflection port allowing the optical signals reflected by the dual band pass WDM filter and concentrated by the C lens to be incident thereon and to be output therefrom;an optical transmitting unit outputting a transmission signal;a parallel light lens converting the transmission signal output from the optical transmitting unit into parallel light;a WDM filter installed to be inclined with respect to a moving direction of the transmission signal converted into the parallel light by the parallel light lens, to thereby pass the transmission signal converted into the parallel light and reflect the optical signal having the specific wavelength passing through the dual band pass WDM filter; andan optical receiving unit receiving the optical signal having the specific wavelength reflected by the WDM filter,wherein the dual band pass WDM ...

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Номер записи: 32
28-02-2019 дата публикации

OPTICAL SLAB

Номер: US20190064442A1
Автор: Fattal David A., Panotopoulos Georgios, Sorin Wayne Victor, Tan Michael Renne Ty
Принадлежит:

An apparatus () can comprise an optical slab () comprising a rigid substrate of substantially transmissive material. The apparatus () can also comprise a WDM multiplexer () to receive and combine a plurality of optical signals ( and ) at different wavelengths to form a combined optical signal () in the optical slab () having an aggregate power. The apparatus can further comprise a broadcaster () to distribute the combined optical signal () from the optical slab () to each of a plurality of different optical receivers ( and ) with a fraction of the aggregate power of the combined optical signal (). 115.-. (canceled)16. An apparatus comprising:an optical slab comprising a rigid substrate of optically transmissive material and having at least a portion of the optical slab coated with a reflective coating; a first WDM multiplexer to receive and combine a first plurality of optical signals of different wavelengths to form a first combined optical signal in the optical slab having a first aggregate power, and', 'a first broadcaster to distribute the first combined optical signal from the optical slab to a first plurality of optical receivers, each of the first plurality of optical receivers to receive a fraction of the first aggregate power of the first combined optical signal; and, 'a first wave division multiplexing (WDM) multiplexing group that includes a second WDM multiplexer to receive and combine a second plurality of optical signals of different wavelengths to form a second combined optical signal in the optical slab having a second aggregate power, and', 'a second broadcaster to distribute the second combined optical signal from the optical slab to a second plurality of optical receivers, each of the second plurality of optical receivers to receive a fraction of the second aggregate power of the second combined optical signal,, 'a second WDM group that includeswherein the reflective coating of the optical slab maintains each of the first combined optical signal ...

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Номер записи: 33
12-06-2014 дата публикации

Coupling Device for an Optical Waveguide

Номер: US20140158872A1
Автор: Christian Wessling, Jan Kallendrusch, Kai Ulf Markus, Volker Sinhoff
Принадлежит: Ingeneric GmbH, VIMECON GmbH

A coupling device for an optical waveguide includes an optical waveguide connection for a first optical waveguide. The coupling device includes an optical filter arranged in a beam path between a laser light source and the optical waveguide connection which reflects light of a first wavelength range or a first polarization direction and transmits light of a second wavelength range or a second polarization direction.

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Номер записи: 34
24-03-2016 дата публикации

Filter, Method for Producing Filter, and Laser Wavelength Monitoring Apparatus

Номер: US20160085028A1
Автор: Liao Zhenxing, Lin Huafeng, Wang Lei, Zhou Min
Принадлежит:

A filter includes two translucent bodies. Each of the translucent bodies has a first plane, a second plane that forms a wedge angle with the first plane, and a third plane that intersects with both the first plane and the second plane, first planes of the two translucent bodies are parallel to each other, and second planes of the two translucent bodies are parallel to each other. The filter also comprises a beam splitting film, where surfaces of both sides are respectively combined with the first planes of the two translucent bodies. Two reflective films are combined, respectively, with the second planes of the two translucent bodies. 1. A filter , comprising:first and second translucent bodies, wherein each of the first and second translucent bodies has a first plane, a second plane that forms a wedge angle with the first plane, and a third plane that intersects with both the first plane and the second plane, wherein first planes of the first and second translucent bodies are parallel to each other, and wherein second planes of the first and second translucent bodies are parallel to each other;a beam splitting film, wherein a first surface of the beam splitting film is combined with the first plane of the first translucent body and an opposite second surface of the beam splitting film is combined with the first plane of the second translucent body; andfirst and second reflective films, wherein the first reflective film is combined with the second plane of the first translucent body and the second reflective film is combined with the second plane of the second translucent body.2. The filter according to claim 1 , wherein the wedge angle is 45°±λ claim 1 , and λ is a set allowable error.3. The filter according to claim 1 , wherein third planes of the first and second translucent bodies are parallel.4. The filter according to claim 3 , wherein one of the first and second translucent bodies comprises a plurality of translucent substrates claim 3 , wherein an ...

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Номер записи: 35
23-03-2017 дата публикации

RECEPTACLE-COLLIMATOR ASSEMBLY AND MULTI-WAVELENGTH OPTICAL RECEIVER MODULE

Номер: US20170082808A1
Автор: HUH Joon Young, KANG SAE KYOUNG, LEE Jie Hyun, LEE Joon Ki
Принадлежит:

A receptacle-collimator assembly and a multi-wavelength optical receiver module. The receptacle-collimator assembly includes a receptacle configured to receive a wavelength-multiplexed optical signal; and a collimator integrated with the receptacle and configured to generate a collimated beam signal from a multi-wavelength optical signal received from the receptacle and output the beam signal. 1. A receptacle-collimator assembly comprising:a receptacle configured to receive a wavelength-multiplexed optical signal; anda collimator integrated with the receptacle and configured to generate a collimated beam signal from a multi-wavelength optical signal received from the receptacle and output the beam signal.2. The receptacle-collimator assembly of claim 1 , wherein a fiber stub of the receptacle and a collimating lens of the collimator are coaxially aligned with each other in a housing.3. The receptacle-collimator assembly of claim 1 , wherein the collimator comprises: a sleeve; and a collimating lens with the same external diameter as a fiber stub of the receptacle claim 1 , the collimating lens being inserted into the sleeve and comprising a projection protruding outward from a front edge thereof to come in contact with the fiber stub claim 1 , and a remaining portion other than the projection being spaced apart from the fiber stub.4. The receptacle-collimator assembly of claim 1 , wherein the collimator comprises:sleeve A;sleeve B into which a fiber stub is inserted and which is inserted into sleeve A; anda collimating lens with the same external diameter as sleeve B, the collimating lens having a projection protruding outward from a front edge thereof to come in contact with sleeve B inserted in sleeve A and a remaining portion other than the projection being spaced apart from the fiber stub.5. The receptacle-collimator assembly of claim 1 , wherein the collimator comprises: a sleeve; a collimating lens having the same external diameter as a fiber stub and being ...

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Номер записи: 36
12-03-2020 дата публикации

Narrow bandpass imaging lens

Номер: US20200081190A1
Автор: Michael M. Tilleman
Принадлежит: Rockwell Automation Technologies Inc

For imaging objects in a field-of-view, a compound lens includes a primary lens, a secondary lens, and a tertiary lens. A combination of the primary lens, the secondary lens, and the tertiary lens has an F-number of not more than 1.25, a field-of-view of at least 70 degrees, and images objects from the field-of-view on a sensor.

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Номер записи: 37
25-03-2021 дата публикации

INTEGRATION OF OPTICAL COMPONENTS WITHIN A FOLDED OPTICAL PATH

Номер: US20210088381A1
Автор: Gazes Michael, Kymissis Ioannis, Pervez Nadia, Scholtz James
Принадлежит:

An apparatus includes a substrate transmissive of electromagnetic energy of at least a plurality of wavelengths, having a first end, a second end, a first major face, a second major face, at least one edge, a length, a width, and a thickness, at least a first output optic that outputs electromagnetic energy the substrate; and a first input optic oriented and positioned to provide electromagnetic energy into the substrate via at least one of the first or the second major face of the substrate. The first output optic is laterally spaced from the first input optic. A number of reflectors and optional absorbers may be positioned proximate the first major face and/or the second major face to structure electromagnetic energy and/or to translate such from the first input optic to the first output optic. The apparatus may be part of a spectrometer or other optical system. 1. An apparatus , comprising:a substrate that is transmissive of electromagnetic energy of at least a plurality of wavelengths, the substrate having a first end, a second end, a first major face, a second major face, at least one edge, a length, a width, and a thickness, the second end opposed to the first end across the length of the substrate, the second major face opposed across the thickness of the substrate from the first major face, the at least one edge which extends between at least a portion of the first major face and a portion of the second major face, the width of the substrate greater than the thickness of the substrate;at least a first input optic oriented and positioned to provide electromagnetic energy into the substrate via at least one of the first or the second major face of the substrate;at least a first output optic spaced along at least one of the length or the width of the substrate from the first input optic;a first number of reflective portions that extend at least partially along the first major face of the substrate;a second number of reflective portions that extend at least ...

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Номер записи: 38
29-03-2018 дата публикации

FREE-SPACE OPTICAL COMMUNICATION DUAL-FIBER FERRULE

Номер: US20180088280A1
Автор: Belt Robert Todd, Erkmen Baris Ibrahim, KEYES Edward Allen, Kim Nam-hyong
Принадлежит:

An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The system also includes at least two ferrules. Each ferrule operates with a single emitter/detector pair. The ferrules are designed to operate interchangeably with either emitter/detector pair. 1. An optical communication terminal comprising:a beam splitter configured to transmit light of a first wavelength and reflect light of a second wavelength;at least two ferrules comprising a first ferrule and a second ferrule, wherein each ferrule comprises a connector, a transmission fiber, and a reception fiber, and wherein the first ferrule is configured to couple light transmittable by the beam splitter to at least one fiber and the second ferrule is configured to couple light reflectable by the beam splitter to at least one fiber, wherein each transmission fiber is a single-mode fiber that allows light propagation in only a single mode and each reception fiber is multi-mode fiber is that allows light propagation in multiple modes, and wherein a size of the first ferrule is the same as a size of the second ferrule; anda steering mirror, wherein the steering mirror is positionable in at least a first orientation and a second orientation;wherein the steering mirror and the beam splitter are arranged such that, while the steering ...

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Номер записи: 39
30-03-2017 дата публикации

Wavelength division multiplexing and demultiplexing transistor outline (to)-can assemblies for use in optical communications, and methods

Номер: US20170090121A1
Автор: Chih-Chi Lin, Chihhsien Chang, Ching-Jung Li, Kou-Wei Wang, Tien-Tsorng Shih, Yao-Chien Chuang
Принадлежит: Avago Technologies General IP Singapore Pte Ltd

Wavelength division multiplexing and demultiplexing (WDM) TOSA and ROSA TO-can assemblies are provided that are capable of transmitting and receiving optical data signals, respectively, having more than three wavelengths, that can be packaged in smaller packages than those used for existing BOSAs and tri-OSAs, that can be manufactured without requiring a large amount of plant retooling or capital investment, and that can be made available in the market relatively quickly.

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Номер записи: 40
05-05-2022 дата публикации

Wavelength Division Multiplexing Filter for Multiplexing or Demultiplexing Using Cascaded Frequency Shaping

Номер: US20220137299A1
Автор: Su Zhan, TIMURDOGAN Erman
Принадлежит:

A wavelength division multiplexing filter comprises: a first multi-order Mach-Zehnder interferometer comprising a plurality of first-order Mach-Zehnder interferometers, and a second multi-order Mach-Zehnder interferometer comprising a plurality of first-order Mach-Zehnder interferometers; wherein the first multi-order Mach-Zehnder interferometer and the second multi-order Mach-Zehnder interferometer are included in a group of multiple multi-order Mach-Zehnder interferometers arranged within a binary tree arrangement, the binary tree arrangement comprising: a first set of a plurality of multi-order Mach-Zehnder interferometers, the first set including the first multi-order Mach-Zehnder interferometer, and having an associated spectral response with a first spacing between adjacent passbands, and a second set of at least twice as many multi-order Mach-Zehnder interferometers as in the first set, the second set including the second multi-order Mach-Zehnder interferometer, and having an associated spectral response with a second spacing between adjacent passbands that is twice the first spacing.

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Номер записи: 41
19-03-2020 дата публикации

COLOR SEPARATION IN PLANAR WAVEGUIDES USING DICHROIC FILTERS

Номер: US20200088945A1
Автор: Cheng Hui-Chuan, EDWIN Lionel Ernest, YEOH Ivan Li Chuen
Принадлежит: Magic Leap, Inc.

An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a lateral position. The second waveguide includes a second DOE coupled thereto and disposed at the lateral position. The third waveguide includes a third DOE coupled thereto and disposed at the lateral position. The eyepiece further includes a first optical filter disposed between the first waveguide and the second waveguide at the lateral position, and a second optical filter positioned between the second waveguide and the third waveguide at the lateral position. 1. An eyepiece for projecting image light to an eye of a viewer , the image light including image light in a first wavelength range centered at a first wavelength and image light in a second wavelength range centered at a second wavelength different from the first wavelength , the eyepiece comprising:a first planar waveguide including a first diffractive optical element (DOE) optically coupled thereto, wherein the first DOE is positioned along an optical path of the image light and configured to couple a portion of the image light in the first wavelength range into the first planar waveguide to be propagated in the first planar waveguide;a first optical filter positioned along the optical path downstream from the first DOE, wherein the first optical filter is configured to attenuate the image light in the first wavelength range incident thereon;a second planar waveguide including a second DOE optically coupled thereto, wherein the second DOE is positioned along the optical path downstream from the first optical filter and configured to couple a portion of the image light in the second ...

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Номер записи: 42
30-03-2017 дата публикации

WAVELENGTH DIVISION MULTIPLEXING TRANSISTOR OUTLINE (TO)-CAN ASSEMBLIES FOR USE IN OPTICAL COMMUNICATIONS AND OPTICAL COMMUNICATIONS MODULE INCORPORATING SAME

Номер: US20170093488A1
Автор: Kanan Ayman, Lin Chih-Chi, Wang Kou-Wei
Принадлежит:

A wavelength division multiplexing (WDM) transistor-outline (TO)-can assembly is provided that is capable of transmitting optical data signals having multiple wavelengths. The WDM TO-can assembly can be packaged in a relatively small package without requiring a large amount of plant retooling or capital investment, and that can be made available in the market relatively quickly. A plurality of the WDM TO-can assemblies can be incorporated into a small form factor or C form factor pluggable-type optical communications module to achieve high data rates. 1. A wavelength division multiplexing (WDM) transistor-outline (TO)-can assembly comprising:an assembly body having a forward end, a rearward end opposite the forward end, and an optical receptacle on the forward end that is adapted to receive an end of an optical fiber that is capable of carrying an optical signal having at least N wavelengths of light, where N is a positive integer that is equal to or greater than four, the assembly body having a main optical axis that extends from the forward end to the rearward end;at least first and second TO-can devices disposed on or formed in the assembly body, the first TO-can device being located in the rearward end of the assembly body and having an optical axis that is coaxial with the main optical axis, the second TO-can device being located in a side wall of the assembly body and having an optical axis that is at a non-zero-degree angle to the main optical axis, wherein each of the TO-can devices has at least two channels that operate at two different wavelengths of the N wavelengths;and an optics system in the assembly body, the optics system coupling light of the N wavelengths between the TO-can devices and the end of the optical fiber.2. The WDM TO-can assembly of claim 1 , wherein each TO-can device includes an optoelectronic chip having a dual-wavelength laser that generates the two different wavelengths of the N wavelengths.3. The WDM TO-can assembly of claim 2 , ...

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Номер записи: 43
05-04-2018 дата публикации

Polarization-insensitive optical transceiver

Номер: US20180095224A1
Автор: Ashok V. Krishnamoorthy, Jin Yao, Xuezhe Zheng, Ying Luo
Принадлежит: Oracle International Corp

An integrated circuit that includes a wavelength-filter layer stack (which may include silicon oxynitride) and an optical substrate (such as a silicon-on-insulator platform) is described. During operation, an optical signal received from an optical fiber or an optical waveguide is wavelength filtered into a set of wavelength-filter optical waveguides by an optical multiplexer/demultiplexer (such as an Echelle grating and/or an array waveguide grating) in the wavelength-filter layer stack. Then, wavelength-filtered optical signals are optically coupled to the optical substrate, where they are received using photodetectors. Alternatively, modulators in the optical substrate modulate wavelength-filtered modulated optical signals, which are then optically coupled to the set of wavelength-filter optical waveguides in the wavelength-filter layer stack. Next, the wavelength-filtered modulated optical signals are combined using the optical multiplexer/demultiplexer, and the resulting optical signal is output to the optical fiber or the optical waveguide.

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Номер записи: 44
26-03-2020 дата публикации

OPTICAL TEST DEVICE AND SYSTEMS

Номер: US20200099445A1
Автор: Dugan Andrew, Paredes Salvador, Ratterree Gary, Storey Jeffrey K., Waters John F.
Принадлежит: LEVEL 3 COMMUNICATIONS, LLC

Systems, methods, and devices are disclosed for monitoring optical communications between a managed location and a remote location. In particular, an optical signal is transmitted over an optical fiber and passed-through a test device. A portion of the optical signal is filtered from the original optical signal and passed to a monitoring unit. The monitoring unit may instruct one or more switches in the test device to loop the optical signal back toward the managed location. Subsequently, testing and monitoring may be performed at the managed location. The device may provide a test output or may transmit the information to the managed location. 12-. (canceled)3. A method comprising:receiving an optical signal at an optical test device, the optical test device comprising at least one monitoring device and a first switch;receiving, at the monitoring device, a portion of the optical signal;detecting a power level of the portion of the optical signal and comparing the detected power level of the portion of the optical signal with a threshold power level to determine if the optical signal is valid or invalid;detecting, when the detected power level indicates that the optical signal is invalid, a control signal within the optical signal, the control signal used to control the status of the optical test device; andaltering the state of the optical test device from a first state to a second state when the control signal is detected at the optical test device.4. The method of claim 3 , wherein altering the state of the optical test device comprises toggling the first switch from a first position to a second position to alter the state of the optical test device from the first state to the second state when the control signal is detected.5. The method of claim 4 , wherein the control signal is an encoded signal in the optical signal.6. The method of claim 5 , wherein the encoded signal is a predetermined series of bits.7. The method of claim 4 , further comprising altering ...

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Номер записи: 45
02-06-2022 дата публикации

WAVELENGTH DIVISION MULTIPLEXING DEVICES WITH STAGGERED FILTERS AND METHODS OF MAKING THE SAME

Номер: US20220171132A1
Автор: MATISS Andreas, Spreemann Martin
Принадлежит:

A wavelength division multiplexing (WDM) device comprises: a substrate; a common port coupled to the substrate and configured for communication of a combined optical signal that includes different signal channels; and filters coupled to the substrate. The common port and the filters define an optical path for the combined optical signal. Each filter is configured to pass one of the signal channels and to reflect any remainder of the signal channels. The filters have a staggered arrangement to facilitate automated assembly. Methods of such automated assembly are also disclosed. 1. A wavelength division multiplexing (WDM) device , comprising:a substrate;a common port coupled to the substrate and configured for communication of a combined optical signal that includes different signal channels; anda plurality of filters coupled to the substrate, wherein the common port and the plurality of filters define an optical path for the combined optical signal, with each filter of the plurality of filters being configured to pass one of the signal channels and to reflect any remainder of the signal channels; each filter of the plurality of filters comprises an optical surface in the optical path, a back surface opposite the optical surface, and opposed sides extending between the optical surface and the back surface, and', 'the plurality of filters have a staggered arrangement so that the opposed sides of each filter face an associated region over the substrate that is not occupied by a neighboring filter in the plurality of filters., 'wherein2. A WDM device according to claim 1 , wherein the staggered arrangement comprises a linear staggering of the plurality of filters so that the opposed sides of each filter face an associated region over the substrate that is not occupied by any other filter in the plurality of filters.3. A WDM device according to claim 1 , wherein the staggered arrangement comprises an alternating stagger of the plurality of filters such that the sides of ...

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Номер записи: 46
11-04-2019 дата публикации

Wavelength de-multiplexing system and optical receiver module

Номер: US20190109650A1
Автор: Fumihiro Nakajima, Hiroshi Hara, Kazuaki Mii
Принадлежит: Sumitomo Electric Device Innovations Inc, Sumitomo Electric Industries Ltd

A wavelength de-multiplexing system that receives a wavelength multiplexed signal and generates electrical signals corresponding to the optical signals is disclosed. The optical receiver module includes a lens, a lens unit, and an optical de-multiplexer (O-DeMux). The lens converts the wavelength multiplexed signal into a quasi-collimated beam. The lens unit narrows a diameter of the quasi-collimated beam. The O-DeMux de-multiplexes the narrowed quasi-collimated beam coming from the lens unit by wavelength selective filters (WSFs) each having optical distances from the lens unit different from each other.

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Номер записи: 47
27-04-2017 дата публикации

WAVELENGTH-MULTIPLEXING OPTICAL COMMUNICATION MODULE

Номер: US20170115459A1
Автор: KAMO Yoshiyuki, MATSUSUE Akihiro, OHATA Nobuo
Принадлежит: Mitsubishi Electric Corporation

A wavelength-multiplexing optical communication module includes: a substrate; a plurality of light sources on the substrate; a plurality of joint materials separately disposed on the substrate at positions respectively corresponding to the plurality of light sources; and a plurality of optical components fixed on the substrate by means of the plurality of joint materials respectively, wherein the substrate includes a plurality of forming portions which respectively form peripheries of the plurality of joint materials into shapes of circles or regular polygons having an even number of vertices. 1. A wavelength-multiplexing optical communication module comprising:a substrate;a plurality of light sources on the substrate;a plurality of joint materials separately disposed on the substrate at positions respectively corresponding to the plurality of light sources; anda plurality of optical components fixed on the substrate by means of the plurality of joint materials respectively,wherein the substrate includes a plurality of forming portions which respectively form peripheries of the plurality of joint materials into shapes of circles or regular polygons having an even number of vertices.2. The wavelength-multiplexing optical communication module of claim 1 , wherein the plurality of forming portions include recesses formed on the substrate and the joint materials fill the recesses.3. The wavelength-multiplexing optical communication module of claim 1 , wherein the plurality of forming portions include joint material application regions where the joint materials are applied and organic films provided on peripheries of the joint material application regions.4. The wavelength-multiplexing optical communication module of claim 1 , wherein the plurality of forming portions include joint material application regions where the joint materials are applied and joint material non-application regions provided on peripheries of the joint material application regions.5. The ...

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Номер записи: 48
18-04-2019 дата публикации

Method And System For Near Normal Incidence MUX/DEMUX Designs

Номер: US20190113687A1
Автор: Masini Gianlorenzo, Sahni Subal, Wang Shawn
Принадлежит:

Near normal incidence MUX/DEMUX designs may include an optical demultiplexer coupled to a photonics die, where the optical demultiplexer comprises an input fiber, thin film filters at a first surface of a substrate, a first mirror at the first surface of the substrate, and a second mirror at a second surface of the substrate. The optical demultiplexer may receive an input optical signal comprising a plurality of wavelength optical signals, reflect the input optical signal from the first mirror to the second mirror, reflect the input optical signal from the second mirror to a first of the thin film filters, communicate an optical signal at a first wavelength to the photonics die while reflecting others to the second mirror, reflect the other signals to a second of the plurality of thin film filters, and communicate an optical signal at a second wavelength to the photonics die. 1. A method for communication , the method comprising: receiving an input optical signal comprising a plurality of wavelength optical signals;', 'reflecting the input optical signal from the first mirror to the second mirror;', 'reflecting the input optical signal from the second mirror to a first of the plurality of thin film filters;', 'communicating an optical signal at a first wavelength of the plurality of wavelength optical signals to the photonics die while reflecting others of the plurality of wavelength optical signals to the second mirror;', 'reflecting the others of the plurality of wavelength optical signals to a second of the plurality of thin film filters; and', 'communicating an optical signal at a second wavelength of the plurality of wavelength optical signals to the photonics die., 'in an optical demultiplexer coupled to a photonics die, the optical demultiplexer comprising an input fiber, a plurality of thin film filters at a first surface of a substrate, a first mirror at the first surface of the substrate, and a second mirror at a second surface of the substrate opposite to ...

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Номер записи: 49
18-04-2019 дата публикации

Method And System For Eliminating Polarization Dependence For 45 Degree Incidence MUX/DEMUX Designs

Номер: US20190115995A1
Автор: Guckenberger John Andrew, Sahni Subal
Принадлежит:

Methods and systems for eliminating polarization dependence for 45 degree incidence MUX/DEMUX designs may include an optical transceiver, where the optical transceiver comprises an input optical fiber, a beam splitter, and a plurality of thin film filters coupled to a photonics die. The thin film filters are arranged above corresponding grating couplers in the photonics die. The transceiver may receive an input optical signal comprising different wavelength signals via the input optical fiber, split the input optical signal into signals of first and polarizations using the beam splitter by separating the signals of the second polarization laterally from the signals of the first polarization, communicate the signals of the first polarization and the second polarization to the plurality of thin film filters, and reflect signals of each of the plurality of different wavelength signals to corresponding grating couplers in the photonics die using the thin film filters. 1. A method for communication , the method comprising: receiving an input optical signal comprising a plurality of different wavelength signals via the input optical fiber;', 'splitting the input optical signal into signals of a first polarization and signals of a second polarization using the beam splitter by separating the signals of the second polarization laterally from the signals of the first polarization;', 'communicating the signals of the first polarization and the second polarization to the plurality of thin film filters; and', 'communicating signals of each of the plurality of different wavelength signals to corresponding grating couplers in the photonics die using the thin film filters., 'in an optical transceiver, the optical transceiver comprising an input optical fiber, a beam splitter, and a plurality of thin film filters coupled to a photonics die, the thin film filters being arranged above corresponding grating couplers in the photonics die2. The method according to claim 1 , comprising ...

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Номер записи: 50
03-05-2018 дата публикации

APPARATUSES AND METHODS FOR PHOTONIC COMMUNICATION AND PHOTONIC ADDRESSING

Номер: US20180120505A1
Автор: QUINLAN SION
Принадлежит: MICRON TECHNOLOGY, INC.

Apparatuses and methods for photonic communication and photonic addressing are disclosed herein. An example apparatus includes a plurality of photonic sources, a plurality of memory die, a logic die. Each of the plurality of photonic sources provides a photonic signal of a different wavelength and are provided to a first photonic path. Each memory die of the plurality of memory die includes a photonic modulation circuit coupled to the first photonic path, and further includes a photonic detector circuit coupled to a second photonic path. Each memory die of the plurality of memory die is associated with and addressed by a respective wavelength of a photonic signal. The logic die is coupled to the first and second photonic paths, and includes a plurality of photonic circuits. Each of the photonic circuits of the plurality of photonic circuits is associated with a respective wavelength of a photonic signal. 1. An apparatus , comprising:first and second photonic paths;a first layer at least coupled to the first photonic path, the first layer configured to provide a plurality of photonic signals to the first photonic path, wherein each of the plurality of photonic signals has a different wavelength; and a first photonic modulator circuit coupled to the first photonic path, wherein the first photonic filter is configured to receive the plurality of photonic signals from the first photonic path, filter a photonic signal of a respective wavelength from the plurality of photonic signals and provide the plurality of photonic signals including the filtered photonic signal of the respective wavelength to the first photonic path; and', 'a second photonic filter coupled to the second photonic path, wherein the second photonic filter is configured to receive the plurality of photonic signals from the second photonic path, filter a photonic signal of a respective wavelength from the plurality of photonic signals and provide the remaining plurality of photonic signals to the second ...

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Номер записи: 51
04-05-2017 дата публикации

METHOD OF PACKAGING MULTICHANNEL OPTICAL RECEIVER MODULE AND PACKAGE OF THE SAME

Номер: US20170123158A1
Автор: Heo Young Soon, Kang Hyun Seo, Kim Jeong Eun, KIM Keo Sik, Park Hyoung Jun, RYU Ji Hyoung
Принадлежит:

A method of packaging a multi-channel optical receiver module and a package of the same are provided. The method includes installing a first lens on a sub-mount; aligning an optical block including a plurality of filters on the sub-mount; installing the aligned optical block on the sub-mount; aligning a second lens on the sub-mount; installing the aligned second lens on the sub-mount; and coupling the sub-mount to a TO-stem. The aligning of the optical block transmits light incident through the first lens to the plurality of filters, transmits light beams transmitted through the plurality of filters to an object lens, monitors positions of and intervals between the light beams transmitted through an infrared (IR) camera and aligns the optical block so that the intervals between the light beams transmitted through the plurality of filters are identical. 1. A method of packaging a multi-channel optical receiver module , comprising:installing a first lens on a sub-mount;aligning an optical block including a plurality of filters on the sub-mount;installing the aligned optical block on the sub-mount;aligning a second lens on the sub-mount;installing the aligned second lens on the sub-mount; andcoupling the sub-mount to a TO-stem,wherein the aligning of the optical block transmits light incident through the first lens to the plurality of filters, transmits light beams transmitted through the plurality of filters to an object lens, monitors positions of and intervals between the light beams transmitted through the object lens using an infrared (IR) camera, and aligns the optical block so that the intervals between the light beams transmitted through the plurality of filters are identical.2. The method of claim 1 , wherein the aligning of the second lens comprises aligning the second lens so that the light beams transmitted through the plurality of filters are incident on the center portion of the second lens.3. The method of claim 1 , wherein the installing of the optical ...

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Номер записи: 52
25-08-2022 дата публикации

Optical Multi/Demultiprexing Circuit

Номер: US20220269001A1
Автор: Kenya Suzuki, Manabu Oguma, Osamu Moriwaki
Принадлежит: Nippon Telegraph and Telephone Corp

Provided is an optical wavelength multi/demultiplexing circuit with a high rectangular transmission loss spectrum that is able to secure loss flatness of a transmission band, maintain/reduce a guard bandwidth of wavelength channel spacing, and broaden a transmission bandwidth. The circuit uses a multimode waveguide for a connecting part between a field modulation device and an AWG. The field modulation device is constituted by a common input waveguide, an optical branching unit, optical delay lines, a multiplex interference unit, and a mode converter/multiplexer.

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Номер записи: 53
25-08-2022 дата публикации

FIBER OPTIC PROBE HAVING COMPONENTS AND FEATURES THAT IMPROVE PERFORMANCE

Номер: US20220269005A1
Автор: Marple Eric Todd, Meckert John, Urmey Kirk David
Принадлежит:

A fiber optic probe is provided with a distal sampling end, a proximal end, and light delivery and collection paths therethrough. The probe includes a window disposed at the distal sampling end of the fiber optic probe, the window having a distal end and a proximal end. A lens is disposed near the proximal end of the window, the lens having a distal end, a proximal end, and an aperture. A light delivery optical fiber is provided having a distal end and a proximal end, the light rays being directed through the aperture. A collection optical fiber is provided in optical communication with the lens and the window. The probe may include a lens collection filter disposed between the window and the lens and an optical isolator provided within the aperture to optically isolate the light delivery path and the light collection path. 1. A fiber optic probe having a distal sampling end , a proximal end , a light delivery path therethrough , and a light collection path therethrough , the fiber optic probe comprising:a window disposed at the distal sampling end of the fiber optic probe, the window having a distal end and a proximal end;a lens disposed near the proximal end of the window, the lens having a distal end, a proximal end, and an aperture;a light delivery optical fiber having a distal end and a proximal end, the light rays being directed through the aperture; anda collection optical fiber in optical communication with the lens and the window.2. The fiber optic probe according to claim 1 , further comprising a lens collection filter disposed between the window and the lens claim 1 , the lens collection filter having an aperture.3. The fiber optic probe according to claim 2 , further comprising an optical isolator provided within the aperture to optically isolate the light delivery path and the light collection path.4. The fiber optic probe according to claim 1 , wherein the collection optical fiber is provided in a radial arrangement.5. The fiber optic probe according ...

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Номер записи: 54
12-05-2016 дата публикации

Fiber-based multi-resonator optical filters

Номер: US20160131845A1
Автор: Ilchenko Vladimir, Matsko Andrey B., Savchenkov Anatoliy, Seidel David
Принадлежит:

Optical filters comprising one or more optically-coupled Fabry-Perot resonators are disclosed. In some embodiments, the one or more optically coupled Fabry-Perot resonators include a graded index fiber. In some embodiments, the one or more optically coupled Fabry-Perot resonators are coupled end-to-end, whereas in other embodiments the one or more optically coupled Fabry-Perot resonators are side-coupled through evanescence. One or more implementations of an optical filter allow a spectral response of an input light beam to be controlled, through various approaches, e.g., by exposing a component fiber to ultra-violet radiation. 1. An optical device , comprising:a first fiber Fabry-Perot resonator comprising a first fiber segment, a first reflector formed on a first end facet of the first fiber segment and a second reflector formed on a second end facet of the first fiber segment; anda second fiber Fabry-Perot resonator optically coupled to the first fiber Fabry-Perot resonator, the second fiber Fabry-Perot resonator comprising a second fiber segment oriented to be parallel to the first fiber segment and located to have a portion that spatially overlaps with part of the first fiber segment and is optically evanescently coupled via sides of the first and second fiber segments to the first fiber segment, a third reflector formed on a first end facet of the second fiber segment and a fourth reflector formed on a second end facet of the second fiber segment, wherein a position of the second fiber segment can be shifted relative to the first fiber segment to adjust an interaction length for evanescent coupling between the first and second fiber segments.2. The device as in claim 1 , wherein the first fiber segment is a single-mode fiber segment.3. The device as in claim 1 , wherein the first fiber segment is a multi-mode fiber segment.4. The device as in claim 1 , wherein the first fiber segment is a single-mode gradient index fiber segment.5. The device as in claim 1 , ...

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Номер записи: 55
10-05-2018 дата публикации

Free-space optical collimator

Номер: US20180128983A1
Автор: Andy Zhou, Charlie Xiao, Dwayne Huang, Vincent Gul, Yao Li
Принадлежит: Alliance Fiber Optic Products Co Ltd

In various embodiments, free-space optical collimator and multi-channel wavelength division multiplexers including free-space optical collimators are provided. In one embodiment, for example, a free-space optical collimator includes a base having a length, a generally flat bottom surface and a top surface. A groove is disposed along the top surface of the base extending through the length of the base. A lens is disposed within the groove of the base and a fiber optic pigtail is disposed generally adjacent to a focal point of the lens. The lens and fiber optic pigtail are aligned within the groove to reduce an off-angle offset of an optical light signal propagating through the free-space optical collimator. In other embodiments, a process of producing a free-space optical collimator is also provided.

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Номер записи: 56
11-05-2017 дата публикации

Multiplexer/demultiplexer using stamped optical bench with micro mirrors

Номер: US20170131474A1
Автор: Jeremy Burke, Rand Dannenberg, Robert Ryan Vallance
Принадлежит: Nanoprecision Products Inc

A Mux/Demux subassembly includes a stamped optical bench, which includes an array of stamped reflective surfaces for redirecting optical signals. Alignment features and components of the Mux/Demux subassembly are integrally formed on a stamped optical bench, defining a desired optical path with optical alignment at tight tolerances. The optical bench is formed by stamping a malleable stock material (e.g., a metal stock), to form precise geometries and features of the optical bench.

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Номер записи: 57
11-05-2017 дата публикации

HERMETIC OPTICAL SUBASSEMBLY

Номер: US20170131492A1
Автор: BURKE Jeremy, DANNENBERG Rand, VALLANCE Robert Ryan
Принадлежит:

A hermetic optical subassembly includes an optical bench having a mirror directing optical signals to/from an optical waveguide, a carrier supporting a photonic device, and an intermediate optical bench having a mirror directing optical signals between the photonic device and the optical bench. The optical bench and the intermediate optical bench optically aligns the photonic device to the waveguide along a desired optical path. In one embodiment, the photonic device is an edge emitting laser (EML). The mirror of the optical bench may be passively aligned with the mirror of the intermediate optical bench. The assembled components are hermetically sealed. The body of the optical benches are preferably formed by stamping a malleable metal material to form precise geometries and surface features. In a further aspect, the hermetic optical subassembly integrates a multiplexer/demultiplexer, for directing optical signals between a single optical fiber and a plurality of photonic devices. 1. A hermetic optical subassembly , comprising:a first optical bench supporting an optical fiber, and comprising at least one first mirror defined by stamping a first malleable metal stock material;a second optical bench comprising at least one second mirror defined by stamping a second malleable metal stock material;a carrier supporting at least one photonic device,wherein the optical fiber, the first mirror, the second mirror and the photonic device are in optical alignment, and the first mirror and the second mirror directs an optical signal between the photonic device and the optical fiber, and wherein the first optical bench, the second optical bench and the carrier are coupled to form a hermetic package.2. The hermetic optical subassembly as in claim 1 , wherein the first optical bench is attached to a top of the second optical bench claim 1 , and the carrier is attached to a bottom of the second optical bench.3. The hermetic optical subassembly as in claim 2 , wherein the first ...

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Номер записи: 58
01-09-2022 дата публикации

SYSTEM AND METHOD FOR OPTICAL COMMUNICATIONS USING CWDM FERRULE MATED TO A NON-CWDM FERRULE

Номер: US20220276447A1
Автор: Childers Darrell R., Cloud Mitchell, Hastings DJ
Принадлежит: US Conec, Ltd

An assembly of two fiber optic ferrules allows for the mating of a CWDM fiber optic ferrule with a non-CWDM fiber optic ferrule. The CWDM fiber optic ferrule has optical fibers that carry optical beams with at least two different wavelengths, which the non-CWDM ferrule has optical fibers that carry only one wavelength. The CWDM fiber optic ferrule and the non-CWDM fiber optic ferrule have optical fibers that are inserted along parallel axes. The non-CWDM fiber optic ferrule has a lens pitch that matches the CWDM ferrule. 1. An assembly of two fiber optic ferrules comprising:a first fiber optic ferrule having at least one optical fiber for carrying at least two optical beams with different wavelengths; anda second fiber optic ferrule having a first optical fiber to carry one of the optical beams and a second optical fiber to carry the second optical beam, the second fiber optic ferrule having a front face to engage at least a portion of the first fiber optic ferrule and a plurality of external lenses, the plurality of external lenses being disposed behind the front face.2. The assembly according to claim 1 , wherein the second ferrule is a non-CWDM ferrule and includes a filter block attached thereto.3. The assembly according to claim 1 , wherein the first fiber optic ferrule has a plurality of reflectors on a forward facing surface.4. The assembly according to claim 1 , wherein the plurality of external lenses are disposed in rows claim 1 , each row of the plurality of external lenses are spaced at a pitch of 0.250 mm.5. The assembly according to claim 1 , wherein each of the plurality of external lenses is associated with an optical fiber supporting structure within the second fiber optic ferrule.6. The assembly according to claim 3 , wherein the first fiber optic ferrule has a recessed portion at a front end claim 3 , the plurality of reflectors disposed within the recessed portion.7. The assembly according to claim 3 , further comprising a plurality of ...

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Номер записи: 59
11-05-2017 дата публикации

OPTICAL RECEIVER MODULE THAT RECEIVES WAVELENGTH-MULTIPLEXED SIGNAL

Номер: US20170134099A1
Автор: Hara Hiroshi, Kawamura Masanobu, SAITO Takahiro
Принадлежит:

An optical receiver module that receives a wavelength-multiplexed optical signal is disclosed. The optical receiver module includes a first lens, an optical de-multiplexer, second lenses, and photodiodes. The first lens forms a beam waist of the wavelength-multiplexed optical signal output therefrom. The optical de-multiplexer de-multiplexes the wavelength-multiplexed optical signal into optical signals depending on wavelengths thereof and is installed so as to make optical paths for respective optical signals different from each other. The second lenses concentrate the optical signals onto the respective photodiodes. In the optical receiver module, the beam waist of the wavelength-multiplexed optical signal is set in a halfway between a longest path and a shortest path from the first lens to the second lenses. 1. An optical receiver module that receives a wavelength-multiplexed signal containing optical signals having respective wavelengths and different from each other , comprising:a first lens that receives and concentrates the wavelength-multiplexed signal as forming a beam waist;an optical de-multiplexer that de-multiplexes the wavelength-multiplexed signal into the optical signals depending on the wavelengths, the optical de-multiplexer causing optical distances for the optical signals different from each other;second lenses that concentrate the optical signals output from the optical de-multiplexer; andphotodiodes that receive the optical signals output from the second lenses,wherein the beam waist of the wavelength-multiplexed signal is positioned in midway between a longest path and a shortest path from the first lens to the second lenses for the optical signals.2. The optical receiver module of claim 1 ,further including an optical fiber that provides the wavelength-multiplexed signal to the first lens,wherein the optical fiber in an end thereof is set apart from a focal point of the first lens toward the optical fiber.3. The optical receiver module of ...

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Номер записи: 60
18-05-2017 дата публикации

WAVELENGTH MULTIPLEXER/DEMULTIPLEXER AND OPTICAL MODULE

Номер: US20170139143A1
Автор: Sugama Akio
Принадлежит: FUJITSU LIMITED

A wavelength multiplexer and de-multiplexer includes: a reflection member; a first port provided in the reflection member; a plurality of second ports provided in the reflection member to be spaced apart from the first port; and an optical filter on an optical path between the first port and the plurality of second ports, wherein a plurality of reflection surfaces inclined with respect to the optical filter are formed in the reflection member, a distance of a reflection point from the optical filter in each of the plurality of reflection surfaces becomes smaller as a reflection angle in each of the plurality of reflection surfaces is increased, and each of the plurality of second ports is positioned on a path of light reflected by each of the plurality of reflection surfaces. 1. A wavelength multiplexer and de-multiplexer comprising:a reflection member;a first port provided in the reflection member;a plurality of second ports provided in the reflection member to be spaced apart from the first port; andan optical filter on an optical path between the first port and the plurality of second ports,wherein a plurality of reflection surfaces inclined with respect to the optical filter are formed in the reflection member,a distance of a reflection point from the optical filter in each of the plurality of reflection surfaces becomes smaller as a reflection angle in each of the plurality of reflection surfaces is increased, andeach of the plurality of second ports is positioned on a path of light reflected by each of the plurality of reflection surfaces.2. The wavelength multiplexer and de-multiplexer according to claim 1 , wherein an inclination angle of the plurality of reflection surfaces with respect to the optical filter is constant.3. The wavelength multiplexer and de-multiplexer according to claim 1 , wherein as a distance from the first port is increased claim 1 , a distance of the reflection point from the optical filter in each of the plurality of the reflection ...

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Номер записи: 61
18-05-2017 дата публикации

Micro-filter structures for wavelength division multiplexing in polymer waveguides

Номер: US20170139144A1
Автор: Jean Benoit Héroux
Принадлежит: International Business Machines Corp

A wavelength division multiplexing filter and methods of forming the same include an optical dielectric filter formed on a substrate and having a plurality of dielectric layers. The optical dielectric filter has a high reflectivity at a first wavelength and a high transmissivity at one or more additional wavelengths. The substrate has a high thermal tolerance, such that the substrate is not damaged by temperatures at which the plurality of dielectric layers are formed.

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Номер записи: 62
25-05-2017 дата публикации

Systems for Providing Illumination in Optical Metrology

Номер: US20170146399A1
Автор: Abramov Avi, Allen James Andrew, Arain Muzammil A., Bachar Ohad, Bezel Ilya, Brady Gregory R., GHINOVKER Mark, Hill Andrew V., ISH-SHALOM Yaron, Kandel Daniel, Khokhlov Maxim, Manassen Amnon, Markowitz Moshe, Rotter Lawrence D., Sela Ilan, Shaughnessy Derrick A., Shchegrov Andrei V., Shchemelinin Anatoly, Shulepov Oleg, Svizher Alexander, Tsibulevsky Oleg, Vasiliev Anatoly A.
Принадлежит:

A system for providing illumination to a measurement head for optical metrology is configured to combine illumination beams from a plurality of illumination sources to deliver illumination at one or more selected wavelengths to the measurement head. The intensity and/or spatial coherence of illumination delivered to the measurement head is controlled. Illumination at one or more selected wavelengths is delivered from a broadband illumination source configured for providing illumination at a continuous range of wavelengths. 1. A system for providing illumination to a measurement head , comprising:a broadband illumination source;one or more multi-mode optical fibers configured deliver illumination from the broadband illumination source along an illumination path to a measurement head; anda filter mechanism disposed between the broadband illumination source and the one or more multi-mode optical fibers, the filter mechanism configured to allow illumination at a selected wavelength to be delivered along the illumination path.2. The system of claim 1 , wherein the filter mechanism includes an plurality of narrowband dielectric thin film filters.3. The system of claim 1 , wherein the filter mechanism includes a tunable dielectric filter.4. The system of claim 1 , wherein the filter mechanism is further configured to allow unfiltered illumination to be delivered along the illumination path.5. The system of claim 1 , wherein the filter mechanism includes a monochromator with a rotating dispersive element.6. The system of claim 1 , wherein the filter mechanism includes a dispersive element configured to direct portions of illumination at selected wavelengths along a plurality of optical fibers.7. The system of claim 1 , wherein the one or more multi-mode optical fibers have selected numerical aperture and selected core size based upon etendue of at least one of the broadband illumination source and the measurement head.8. The system of claim 1 , wherein the broadband ...

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Номер записи: 63
25-05-2017 дата публикации

WAVELENGTH DIVISION MULTIPLEXER ARRAY

Номер: US20170146743A1
Автор: Chen Fan, Chen Xiaolin, Frisken Steven James, Wang Xucheng
Принадлежит:

In an example embodiment, a WDM array includes an optical filter, N common ports, N reflection ports, and N pass ports. The N common ports may be positioned to a first side of the optical filter. N may be greater than or equal to two. The N reflection ports may be positioned to the first side of the optical filter. The N pass ports may be positioned to a second side of the optical filter opposite the first side. 1. A wavelength division multiplexer (WDM) array , the WDM array comprising:an optical filter;N common ports positioned to a first side of the optical filter, wherein N is greater than or equal to two;N reflection ports positioned to the first side of the optical filter; andN pass ports positioned to a second side of the optical filter opposite the first side.2. The WDM array of claim 1 , wherein the N common ports claim 1 , the optical filter claim 1 , and the N reflection ports define N reflection paths claim 1 , each of the N reflection paths extending from a corresponding one of the N common ports to the optical filter and from the optical filter to a corresponding one of the N reflection ports.3. The WDM array of claim 1 , wherein the N common ports claim 1 , the optical filter claim 1 , and the N pass ports define N through paths claim 1 , each of the N through paths extending from a corresponding one of the N common ports through the optical filter and to a corresponding one of the N pass ports.4. The WDM array of claim 1 , wherein the optical filter comprises a thin film filter.5. The WDM array of claim 1 , wherein:the N common ports and the N reflection ports collectively comprise an array of 2N optical fibers and an array of N microlenses positioned between the array of 2N optical fibers and the optical filter;the N pass ports comprise an array of N optical fibers and an array of N microlenses positioned between the array of N optical fibers and the optical filter.6. The WDM array of claim 5 , wherein:the N common ports and the N reflection ports ...

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Номер записи: 64
25-05-2017 дата публикации

Multi-channel optical module

Номер: US20170146755A1
Автор: Eun Kyoung JEON, Hyoungjun Park, Hyun Seo Kang, Jeong Eun Kim, Ji Hyoung RYU, Keo-Sik KIM, Young Soon HEO
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A multi-channel optical module includes a stem configured to allow an optical active element transmitting and receiving an optical signal to be installed thereon, an optical module frame connected to the stem and configured to have an optical element forming an optical path corresponding to the optical active element, and an external housing configured to house the optical module frame therein and coupled to the stem, wherein the optical element includes a lens and a filter unit disposed in the optical path and an optical waveguide element to which an optical fiber is connected.

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Номер записи: 65
31-05-2018 дата публикации

Hermetic optical subassembly

Номер: US20180149817A1
Автор: Jeremy Burke, Rand Dannenberg, Robert Ryan Vallance
Принадлежит: Nanoprecision Products Inc

A hermetic optical subassembly includes an optical bench having a mirror directing optical signals to/from an optical waveguide, a carrier supporting a photonic device, and an intermediate optical bench having a mirror directing optical signals between the photonic device and the optical bench. The optical bench and the intermediate optical bench optically aligns the photonic device to the waveguide along a desired optical path. In one embodiment, the photonic device is an edge emitting laser (EML). The mirror of the optical bench may be passively aligned with the mirror of the intermediate optical bench. The assembled components are hermetically sealed. The body of the optical benches are preferably formed by stamping a malleable metal material to form precise geometries and surface features. In a further aspect, the hermetic optical subassembly integrates a multiplexer/demultiplexer, for directing optical signals between a single optical fiber and a plurality of photonic devices.

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Номер записи: 66
22-09-2022 дата публикации

Multi-Channel Light-Receiving Module

Номер: US20220299708A1
Автор: Chenggang Liu, Ruyu SHI, Tuquan CHEN
Принадлежит: Accelink Technologies Co Ltd

Provided is a multi-channel light-receiving module, which comprises an incident collimator, a light-splitting assembly, an optical path conversion assembly and a photoelectric chip array which are arranged in sequence, wherein the light-splitting assembly comprises an inner reflector and a plurality of optical filters, and the optical filters are respectively arranged on an output end of the inner reflector; the channel interval of photoelectric chips in the photoelectric chip array is less than the channel interval of an adjacent optical filter; the optical path conversion assembly comprises a plurality of emergent collimators and an optical fiber connected to each of the emergent collimators; a plurality of paths of optical signals output by the light-splitting assembly are respectively coupled into corresponding optical fibers after passing through the plurality of emergent collimators; and the plurality of paths of optical signals are output by output ends of the plurality of optical fibers and are then coupled to the photoelectric chip array. By means of the light-receiving module, an optical path component is converted into a small channel interval of photoelectric chips from a large channel interval of optical filters, the problem of it being difficult to match the channel interval of optical filters and the channel interval of photoelectric chips is solved, the cost of photoelectric chips is reduced, and the assembly difficulty of optical filters is also reduced.

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Номер записи: 67
08-06-2017 дата публикации

OPTICAL RECEIVING DEVICE AND OPTICAL RECEIVING SYSTEM

Номер: US20170160499A1
Автор: Matsui Jun, Yamamoto Tsuyoshi
Принадлежит: FUJITSU LIMITED

An optical receiving device includes: a lens portion configured to refract incident light with a first wavelength and refract incident light with a second wavelength; a first beam splitter configured to let refracted light with the first wavelength transmit and reflect refracted light with the second wavelength; a second beam splitter configured to reflect transmitted light with the first wavelength; and a light receiver configured to receive reflected light with the first wavelength and reflected light with the second wavelength, wherein the first beam splitter and the second beam splitter are disposed so as to be separated by a difference in optical path length between the light with the first wavelength and the light with the second wavelength. 1. An optical receiving device comprising:a lens portion configured to refract incident light with a first wavelength and refract incident light with a second wavelength;a first beam splitter configured to let refracted light with the first wavelength transmit and reflect refracted light with the second wavelength;a second beam splitter configured to reflect transmitted light with the first wavelength; anda light receiver configured to receive reflected light with the first wavelength and reflected light with the second wavelength,wherein the first beam splitter and the second beam splitter are disposed so as to be separated by a difference in optical path length between the light with the first wavelength and the light with the second wavelength.2. The optical receiving device according to claim 1 ,wherein the lens portion includes a first lens and a second lens, andthe first beam splitter and the second beam splitter are disposed between the first lens and the second lens.3. The optical receiving device according to claim 1 ,wherein the first beam splitter and the second beam splitter are disposed between the lens portion and the light receiver.4. The optical receiving device according to claim 1 ,wherein the first beam ...

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Номер записи: 68
18-06-2015 дата публикации

Thin film filter (tff) embedded waveguide wdm device employing parabola-shaped waveguides

Номер: US20150168650A1
Автор: Katsunari Okamoto
Принадлежит: SIPHX Corp

A wavelength-division lightwave multiplexing device, and method of its manufacture, having an embedded filter and two parabola-shaped crossing waveguides, the waveguides providing collimation of light transmitted therein. At least one of the parabola-shaped wave crossing waveguides includes a first port, and a second port, and a widened portion between the first and second ports having a parabola-shaped profile, wherein the widened portion widens from the first port toward a midpoint thereof, and then narrows to the second port. The invention achieves low insertion loss and high spectral isolation while keeping a narrow guard band smaller, and addresses the problem of poor spectral isolation characteristics in the filter-embedded waveguide WDM device when it is adopted to applications requiring a guard band narrower.

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Номер записи: 69
14-06-2018 дата публикации

Multi-Channel Optical Transmitter and Methods of Making and Using the Same

Номер: US20180164515A1
Автор: Moshe Amit
Принадлежит: Source Photonics Chengdu Co Ltd

An optical transmitter including first, second, third and fourth signal generators configured to transmit first, second, third and fourth optical signals, a first filter configured to combine the first optical signal with the second optical signal to form a first multi-channel signal, a second filter configured to combine the third optical signal with the first multi-channel signal to form a second multi-channel signal, and a third filter configured to combine the fourth optical signal with the second multi-channel signal to form a third multi-channel signal. The first optical signal and the third optical signal have parallel optical axes, as do the second optical signal and the fourth optical signal. The second and fourth optical signals are at an angle of from 5° to 40° with respect to the first and third optical signals and are generally propagated in an opposite direction from the first and third optical signals.

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Номер записи: 70
21-05-2020 дата публикации

Ultra-small multi-channel optical module with optical wavelength distribution

Номер: US20200158958A1
Автор: Dae Seon KIM, Eun Kyoung JEON, Eun Kyu Kang, Jeong Eun Kim, Jong Jin Lee, Kwon Seob Lim, Sang Jin Kwon, Soo Yong Jung
Принадлежит: Electronics and Telecommunications Research Institute ETRI

An ultra-small multi-channel optical module according to one embodiment of the present invention includes a base board, a glass substrate, a heat sink, optical elements, parallel light lenses, a first rectangular reflector, a glass cover, a second rectangular reflector, horizontal reflectors, and a light collecting lens.

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Номер записи: 71
01-07-2021 дата публикации

Optical Module and Assembly Method Thereof

Номер: US20210199904A1
Автор: CHANG Yungcheng
Принадлежит:

An optical module as disclosed includes an aligning bridge, an optical de-multiplexer and a lens array. The aligning bridge has a first section and a second section opposite to the first section. The optical de-multiplexer is on the first section of the aligning bridge. The optical de-multiplexer comprises a plurality of filters configured to transmit a plurality of light beams of different wavelengths. The lens array is on the second section of the aligning bridge. The lens array comprises a plurality of input ports aligned with the filters and configured to receive the light beams from the filters. 1. An optical module , comprising:an aligning bridge having a first section and a second section opposite from the first section;an optical de-multiplexer (DEMUX) on the first section of the aligning bridge, wherein the optical de-multiplexer comprises a plurality of filters configured to transmit a plurality of light beams of different wavelengths; anda lens array on the second section of the aligning bridge, wherein the lens array comprises a plurality of input ports respectively aligned with the plurality of filters and configured to receive the light beams from the filters, and a plurality of output ports.2. The optical module of claim 1 , wherein the first section of the aligning bridge comprises a first mesa protruding from a surface of the aligning bridge.3. The optical module of claim 1 , wherein the second section of the aligning bridge comprises a second mesa protruding from the surface of the aligning bridge.4. The optical module of claim 3 , wherein the second mesa has a first angled surface with respect to the surface of the aligning bridge claim 3 , and the lens array has a second angled surface substantially parallel to the first angled surface of the second mesa.5. The optical module of claim 4 , further comprising an adhesive layer between the first angled surface and the second angled surface claim 4 , configured to connect the lens array and the ...

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Номер записи: 72
21-05-2020 дата публикации

Method And System For A Free Space CWDM MUX/DEMUX For Integration With A Grating Coupler Based Silicon Photonics Platform

Номер: US20200162185A1
Автор: De Dobbelaere Peter, Peterson Mark, Sahni Subal
Принадлежит:

Methods and systems for a free space CWDM MUX/DEMUX for integration with a grating coupler based silicon platform may include an optical assembly coupled to a photonic chip. The optical assembly includes a lens array on the top surface of the chip, an angled mirror, a transparent spacer, and a plurality of thin film filters. The optical assembly may receive an input optical signal comprising a plurality of optical signals at different wavelengths via an optical fiber coupled to the optical assembly, communicate the plurality of optical signals through the transparent spacer, pass a first of the plurality of optical signals through a corresponding one of the plurality of thin film filters while reflecting others of the plurality of optical signals back into the transparent spacer, and reflect the others of the plurality of signals towards a second of the plurality of thin film filters. 1. A method for communication , the method comprising: receiving an input optical signal comprising a plurality of optical signals at different wavelengths via an optical fiber coupled to the optical assembly;', 'communicating the plurality of optical signals through the transparent spacer;', 'focusing the optical signal received from the optical fiber onto a first of the plurality of thin film filters using a silicon lens;', 'passing a first of the plurality of optical signals through the first of the plurality of thin film filters while reflecting others of the plurality of optical signals back through the transparent spacer;', 'reflecting the others of the plurality of signals towards a second of the plurality of thin film filters via a reflective surface of the transparent spacer;', 'passing one of the others of the plurality of optical signals through the second of the plurality of thin film filters; and', 'reflecting the passed optical signals into the photonic chip using the angled mirror., 'in an optical assembly coupled to a photonic chip, the optical assembly comprising a ...

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Номер записи: 73
21-06-2018 дата публикации

OPTICAL FIBER WITH THIN FILM COATING AND CONNECTOR

Номер: US20180172914A1
Автор: BAUER Manfred, Clatanoff William J., Fink Johannes, Larson Donald K., Treadwell Daniel J., WANG Ding
Принадлежит:

An article comprises an optical fiber having a first end with a first end surface having a deposited coating only on a portion thereon. The first end can have a frustoconic or tronconic shape. The optical fiber can be utilized as a stub fiber in an optical device, such as an optical connector, receptacle or adapter. The deposited coating can be a wavelength selective multilayer thin film coating. The deposited coating can reflect a selected wavelength of light back to a central office to provide monitoring in a communication network, such as a PON. 1. An article comprising:an optical fiber having a first end with a first end surface having a deposited coating only on a portion thereof.2. An article comprising:an optical fiber having a frusto-conical or tronconic first end with a first end surface having a deposited coating only on a portion thereof.3. (canceled)4. The article of claim 1 , wherein the deposited coating comprises a wavelength selective multilayer thin film filter coating.5. The article of claim 1 , wherein the first end surface comprises a continuous frusto-conical or tronconical shape having a tip surface and a radial side surface having an angle of greater than 10 degrees and less than 30 degrees with respect to an optical axis of the fiber.6. The article of claim 1 , wherein the first end surface comprises a frusto-conical or tronconical shape having a tip surface and a plurality of radial side surfaces each having an angle of greater than 15 degrees and less than 25 degrees with respect to an optical axis of the fiber.7. The article of wherein the radial side surface is free of the deposited coating.8. The article of wherein the radial side surfaces are free of the deposited coating.9. The article of claim 1 , wherein the deposited coating is substantially uniform on the tip portion of the first end surface.10. The article of claim 1 , wherein the deposited coating is configured to pass light having a wavelength of from about 1260 nm to about 1620 ...

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Номер записи: 74
21-06-2018 дата публикации

FREE-SPACE OPTICAL COMMUNICATION DUAL-FIBER FERRULE

Номер: US20180172915A1
Автор: Belt Robert Todd, Erkmen Baris Ibrahim, KEYES Edward Allen, Kim Nam-hyong
Принадлежит:

An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The system also includes at least two ferrules. Each ferrule operates with a single emitter/detector pair. The ferrules are designed to operate interchangeably with either emitter/detector pair. 1. An optical communication terminal configured for free-space optical communication , the optical communication terminal comprising:a first light source configured to emit light of a first wavelength from a corresponding emission location and a second light source configured to emit light of a second wavelength from a corresponding emission location;a first detector configured to detect, at a corresponding detection location, light of the first wavelength, and a second detector configured to detect, at a corresponding detection location, light of the second wavelength;a steering mirror; andone or more processors operatively coupled to the steering mirror to adjust an orientation of the steering mirror and to manage free-space optical communication with one or more remote optical communication terminals;wherein the corresponding emission locations and the corresponding detection locations are implemented by a dual core fiber ferrule.2. The optical communication terminal of claim 1 , further comprising a mirror positioning system ...

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Номер записи: 75
06-06-2019 дата публикации

THERMAL DRIVEN MEMS TUNABLE FILTER

Номер: US20190171001A1
Автор: JIN Guanghai, Wang Congshun, Yin Luzhong, Zhao Jing
Принадлежит: AGILTRON, INC.

A microelectrical mechanical system (MEMS) implementation of tunable Fabry Perot filter devices is disclosed. The advantages associated with the use of these tunable etalons include increases in aperture size, displacement, reliability, and a reduction in cost. In some examples, integrated tunable detectors in miniature spectrometers using a thermal driven MEMS Fabry-Perot tunable filter are provided. Other examples use integrated thermal driven tunable MEMS Fabry-Perot filter to select fiber optical communication channel. 1. A tunable etalon filter device , comprising:a substrate mirror secured to a substrate and a top mirror forming an optical cavity therebetween; a center section, the entire center section having a first thickness;', 'two end sections separated by the center section, the entire thickness of each end section being a second thickness less than the first thickness, and each end section being fixed to the substrate with an elevated supporting post; and, 'at least two electrically conductive silicon beams, each comprisinga bridge connecting the center section with the top mirror;wherein each silicon beam and the connected top mirror moves in a direction perpendicular to the substrate upon passing an electrical current through the electrically conductive silicon beam.2. The tunable etalon filter device of claim 1 , wherein the center section of the beam is thinner than the ends.3. The tunable etalon filter device of claim 2 , wherein the center section comprises a notch formed in a top surface thereof.4. The tunable etalon filter device of claim 2 , wherein the center section comprises a notch formed in a bottom surface thereof.5. (canceled)6. The tunable etalon filter device of claim 1 , wherein each end section is formed as a single notch in a top surface of the beam.7. The tunable etalon filter device of claim 1 , wherein each end section is formed as a single notch in a bottom surface of the beam.8. The tunable etalon filter device of claim 1 , ...

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Номер записи: 76
18-09-2014 дата публикации

Integrated Apertured Micromirror and Applications Thereof

Номер: US20140268174A1
Автор: Diaa Abdel Maged Khalil, Mohamed Sadek, Yasser M. Sabry
Принадлежит: SI Ware Systems SAE

An integrated apertured micromirror is provided in which the micromirror is monolithically integrated with a micro-optical bench fabricated on a substrate using a lithographic and deep etching technique. The micromirror has an aperture therein and is oriented such that the micromirror is optically coupled to receive an incident beam having an optical axis in a plane of the substrate and to at least partially transmit the incident beam therethrough via the aperture.

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Номер записи: 77
06-06-2019 дата публикации

OPTICAL MODE MATCHING

Номер: US20190173585A1
Автор: MATHAI Sagi V., Panotopoulos Georgios, Rosenberg Paul K., Sorin Wayne, Tan Michael Renne Ty
Принадлежит:

An apparatus includes a first and second VCSEL, each with an integrated lens. The VCSELs emit a first light beam having first optical modes at first wavelengths and a second light beam having second optical modes at second wavelengths. The apparatus also has an optical block with a first and second surface, a mirror coupled to the second surface, and a wavelength-selective filter coupled to the first surface. The first integrated lens mode matches the first beam to the optical block, and the second integrated lens mode matches the second beam to the optical block such that the first beam and second beam each have substantially a beam waist with a beam waist dimension at the first and second input region, respectively. An exit beam that includes light from the first beam and the second beam is output from the second surface of the optical block. 1. An apparatus comprising:a first vertical-cavity surface-emitting laser (VCSEL) to emit a first light beam having first optical modes at first wavelengths, wherein the first VCSEL has a first integrated lens;a transmissive optical block having a first input region on a first surface to receive the first beam, and an output region on a second surface to output an exit light beam, wherein the first integrated lens mode matches the first beam to the optical block such that the first beam has substantially a beam waist (BW) with a BW dimension at the first input region;a second VCSEL to emit a second light beam having second optical modes at second wavelengths, wherein the second VCSEL has a second integrated lens, wherein the optical block has a second input region on the first surface to receive the second beam, wherein the second integrated lens mode matches the second beam to the optical block such that the second beam has substantially the BW with approximately the BW dimension at the second input region;a mirror coupled to the second surface to reflect and focus the first beam to the second input region to substantially ...

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Номер записи: 78
28-06-2018 дата публикации

COLOR SEPARATION IN WAVEGUIDES USING DICHROIC FILTERS

Номер: US20180180817A1
Автор: Cheng Hui-Chuan, EDWIN Lionel Ernest, YEOH Ivan Li Chuen
Принадлежит: Magic Leap, Inc.

An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a lateral position. The second waveguide includes a second DOE coupled thereto and disposed at the lateral position. The third waveguide includes a third DOE coupled thereto and disposed at the lateral position. The eyepiece further includes a first optical filter disposed between the first waveguide and the second waveguide at the lateral position, and a second optical filter positioned between the second waveguide and the third waveguide at the lateral position. 1. An eyepiece for projecting an image to an eye of a viewer , the eyepiece comprising:a first planar waveguide positioned in a first lateral plane, wherein the first waveguide comprises a first diffractive optical element (DOE) coupled thereto and disposed at a lateral position, the first DOE configured to diffract image light in a first wavelength range centered at a first wavelength;a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, wherein the second waveguide comprises a second DOE coupled thereto and disposed at the lateral position, the second DOE configured to diffract image light in a second wavelength range centered at a second wavelength longer than the first wavelength;a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane, wherein the third waveguide comprises a third DOE coupled thereto and disposed at the lateral position, the third DOE configured to diffract image light in a third wavelength range centered at a third wavelength longer than the second wavelength; a first transmittance ...

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Номер записи: 79
29-06-2017 дата публикации

MUX/DEMUX COMPRISING CAPILLARY FILTER BLOCK AND METHODS OF PRODUCING THE SAME

Номер: US20170184789A1
Автор: Gui Dong, Xiao Qijun, Zhou Andy
Принадлежит: Alliance Fiber Optic Products, Inc.

A multiplexer/demultiplexer is provided comprising a capillary filter block, a capillary adhesive, a signal-routing block, and an index-matching adhesive. The capillary adhesive resides in the capillary interstices of the capillary filter block and the index-matching adhesive forms an optical and mechanical interface between the signal-routing block and the capillary filter block. The layer thickness of the index-matching adhesive accommodates for extra-planar surface irregularities in the bonding face of the signal routing block and extra-planar variations along the proximal ends of the component filter blocks of the capillary filter block. The capillary filter block can be formed from a plurality of component filter blocks by dicing multiple component filter blocks from a filter block substrate, placing the component filter blocks adjacent to one another, and using capillary force to draw adhesive between adjacent sidewalls of component filter blocks 1. A multiplexer/demultiplexer comprising:a common port;a plurality of input/output ports;a capillary filter block;a capillary adhesive;a signal-routing block; andan index-matching adhesive, whereinthe capillary filter block comprises a plurality of component filter blocks,each of the component filter blocks of the capillary filter block comprises a proximal end, a distal end, and a pair of capillary side walls extending from the proximal end of the component filter block to the distal end of the component filter block,each of the component filter blocks of the capillary filter block further comprises a thin-film filter disposed at the distal end of the component filter block,the component filter blocks are arranged side-by-side comprising respective capillary interstices between adjacent capillary side walls of the component filter blocks,the capillary adhesive resides in the capillary interstices of the capillary filter block to secure the component filter blocks to each other with the thin-film filters of each ...

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Номер записи: 80
07-07-2016 дата публикации

DEVICE INCLUDING MIRRORS AND FILTERS TO OPERATE AS A MULTIPLEXER OR DE-MULTIPLEXER

Номер: US20160195677A1
Автор: Mathai Sagi Varghese, Panotopoulos Georgios, Rosenberg Paul Kessler, Sorin Wayne Victor, Tan Michael Renne Ty
Принадлежит:

A device includes a first element and a second element. The first element includes a plurality of mirrors formed as concave features on the first element. The second element is to support a plurality of filters. The first element is coupleable to the second element to align the plurality of mirrors relative to the plurality of filters to operate as a multiplexer or de-multiplexer. 1. A device comprising:a first element including a plurality of mirrors formed as concave features on the first element; anda second element to support a plurality of filters;wherein the first element is coupleable to the second element to align the plurality of mirrors relative to the plurality of filters to operate as a multiplexer or de-multiplexer.2. The device of claim 1 , further comprising a third element coupleable to the first element to passively align the second element with at least one of a plurality of light sources to enable operation as a multiplexer claim 1 , and a plurality of photodetectors to enable operation as a de-multiplexer.3. The device of claim 1 , wherein the first element includes an alignment element to enable the first element to passively align relative to other components.4. The device of claim 3 , wherein the alignment element includes a physical stop to support and passively align the second element.5. The device of claim 1 , wherein the plurality of mirrors are multilayer dielectric mirrors.6. The device of claim 1 , wherein the plurality of mirrors and the plurality of filters are to provide wavelength division multiplexing (WDM).7. The device of claim 1 , wherein the second element is a filter substrate to support the filters and enable light to pass through the filter substrate.81. The device of claim 1 , wherein the first element comprises a metal or metalized plastic associated with a reflectivity to enable the plurality of mirrors to be formed as part of a surface of the first element.9. The device of claim 1 , further comprising an air gap between ...

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Номер записи: 81
07-07-2016 дата публикации

DEVICE AND METHOD FOR ALL-OPTICAL INFORMATION EXCHANGE

Номер: US20160195792A1
Автор: Fu Hongyan, He Jifang, WANG Jian
Принадлежит:

An all-optical information exchange device and method are provided. The all-optical information exchange device includes: a second-order nonlinear optical waveguide, a first optical coupler, a third optical coupler, a fourth optical coupler, a first optical filter, a second optical filter and a first polarization controller; the first optical filter is transmissive to a first wavelength/waveband signal light, and the second optical filter is transmissive to a second wavelength/waveband signal light during use. 1. An all-optical information exchange device , comprising:a second-order nonlinear optical waveguide, a first optical coupler, a third optical coupler, a fourth optical coupler, a first optical filter, a second optical filter and a first polarization controller; wherein,a first port of the first polarization controller is configured as an input port for a wavelength division multiplexing (WDM) signal light, and a second port of the first polarization controller is connected to a first port of the first optical coupler;a second port of the first optical coupler is configured as an output port for the WDM signal light, a third port of the first optical coupler is connected to a first port of the first optical filter, and a forth port of the first optical coupler is connected to a first port of the second optical filter;a second port of the first optical filter is connected to a first port of the third optical coupler, and second port of second optical filter is connected to a first port of the fourth optical coupler;a first port of the second-order nonlinear optical waveguide is connected to a third port of the third optical coupler, a second port of the second-order nonlinear optical waveguide is connected to a third port of the fourth optical coupler;a second port of the third optical coupler and a second port of the fourth optical coupler are configured as input ports for a control light respectively; andthe WDM signal light comprises a first wavelength/ ...

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Номер записи: 82
07-07-2016 дата публикации

RECONFIGURABLE DEVICE FOR TERAHERTZ (THz) AND INFRARED (IR) FILTERING AND MODULATION

Номер: US20160196943A1
Автор: Christopher W. Berry, Mehmet Unlu, Mona JARRAHI, Shenglin LI
Принадлежит: University of Michigan

A reconfigurable device for terahertz (THz) or infrared (IR) ranges that includes a base substrate, a lower array attached to the base substrate, and an upper array attached to the base substrate and at least partially suspended over the lower array. Activation of the reconfigurable device causes the upper array to mechanically flex towards the lower array so that electrical contact is made therebetween. Methods of fabricating and operating the reconfigurable device are also provided.

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Номер записи: 83
20-06-2019 дата публикации

OPTICAL MODULE HAVING TWO LENS SYSTEM AND MONITOR PHOTODIODE BETWEEN TWO LENSES

Номер: US20190187391A1
Автор: FUJIMURA Yasushi, KUROKAWA Munetaka, Saeki Tomoya, SATO Shunsuke, Shiozaki Manabu
Принадлежит:

An optical module with a laser diode (LD) without any temperature control and an optical fiber that is coupled with the LD through the two lens system is disclosed. The two lens system first converts laser beam into collimated beam and second concentrates the collimated beam onto the optical fiber. A beam splitter is disposed between the lenses and splits the collimated beam toward a photodiode (PD). The PD, which receives the split collimated beam in a back surface thereof, provides an anti-reflection film in the back surface. The anti-reflection film eliminates multi reflections occurred within the PD. 1. A transmitting optical module comprising:a semiconductor laser diode (LD) that emits a divergent optical beam;a first lens optically coupled with the LD, the first lens converting the divergent optical beam into a collimated optical beam;a beam splitter (BS) optically coupled with the first lens, the beam splitter splitting the collimated optical beam into a collimated monitored beam and a collimated signal beam, the beam splitter including a glass member; anda semiconductor photodiode (PD) having a semiconductor substrate made of indium phosphide (InP) and a semiconductor stack including a semiconductor layer made of indium gallium arsenide (InGaAs) on the semiconductor substrate, the semiconductor substrate having a back surface and a top surface opposite to the back surface, the back surface facing the glass member in the BS and receiving the collimated monitored beam, the top surface forming a Fresnel interface against the InGaAs semiconductor layer in the semiconductor stack provided thereon, the semiconductor substrate having a thickness causing multiple reflections between the top surface and the back surface thereof for the collimated monitored beam,wherein the PD is mounted on the BS and attaches an anti-reflection film thereto, the anti-reflection film being made of silicon nitride (SiN) having refractive index of 2.05 to 2.35.25.-. (canceled)6. The ...

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Номер записи: 84
27-06-2019 дата публикации

TWO-FILTER LIGHT DETECTION DEVICES AND METHODS RELATED TO SAME

Номер: US20190196108A1
Автор: Cai Xiuyu
Принадлежит: Illumina, Inc.

Light detection devices and corresponding methods are provided. The devices include a reaction structure to contain a reaction solution and at least one reaction site that generates light emissions in response to incident excitation light after treatment with the reaction solution. The devices also include a plurality of light sensors and device circuitry. The devices further include a plurality of light guides extending toward at least one corresponding light sensor from input regions that receive the excitation light and the light emissions from at least one corresponding reaction recess. The light guides comprise a first filter region that filters the excitation light and permits the light emissions of a first wavelength to pass to the at least one corresponding light sensor, and a second filter region that filters the excitation light and the permits light emissions of a second wavelength to pass to the at least one corresponding light sensor. 1. A device , comprising:a reaction structure to contain a reaction solution and a plurality of reaction sites that generate light emissions in response to incident excitation light after treatment with the reaction solution, the reaction structure being positioned over a device base;a plurality of light sensors within the device base;device circuitry within the device base electrically coupled to the plurality of light sensors to transmit data signals based on photons detected by the light sensors; anda plurality of light guides with input regions to receive the excitation light and the light emissions from at least one corresponding reaction site, the light guides extending into the device base from the input regions toward at least one corresponding light sensor,wherein each of the plurality of light guides comprise a first filter region formed of a first filter material to filter the excitation light of at least a first wavelength and permit the light emissions of a second wavelength to pass therethrough to the at ...

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Номер записи: 85
27-07-2017 дата публикации

OPTICAL RECEIVER MODULE

Номер: US20170212320A1
Автор: Hara Hiroshi
Принадлежит:

An optical receiver module that recovers signals from a wavelength multiplexed optical signal is disclosed. The optical receiver module includes photodiodes (PDs) arranged in an array by a pitch, an amplifier that integrates trans-impedance amplifiers (TIAs) each corresponding to the PDs, and a sub-mount that mounts the PDs thereon. The sub-mount provides metal patterns on which the PDs are mounted by the flip-chip bonding. The metal patterns compensate a difference between the pitch of the arrayed PDs and another pitch of the TIAs in the amplifier as maintaining the characteristic impedance thereof substantially equal to each other. 1. An optical receiver module that receives a wavelength multiplexed optical signal multiplexing optical signals having wavelengths different from each other and recovers data contained in the optical signals , the optical receiver module comprising:photodiodes receiving the optical signals and generating electrical signals;amplifiers corresponding to the photodiodes, the amplifiers amplifying electrical signals and outputting the data; anda sub-mount providing metal patterns that electrically connect the photodiodes with the amplifiers, the metal patterns mounting the photodiodes thereon by a flip-chip arrangement at respective ends thereof and being wire-bonded to the amplifiers at respective another ends thereof, the metal patterns having a first pitch at the respective ends and a second pitch different from the first pitch at the another respective ends,wherein one of the metal patterns has a first length from the end to the another end and another of the metal patterns has a second length from the end to the another end longer than the first length, andwherein the one of the metal patterns has characteristic impedance substantially equal to characteristic impedance of the another of the metal patterns.2. The optical receiver module of claim 1 ,wherein the one of the metal patterns has a width that is narrower than a width of the ...

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Номер записи: 86
13-08-2015 дата публикации

MULTI-LAYER THIN FILM FILTER AND METHOD OF BUILDING THEREFOR

Номер: US20150226962A1
Автор: Kashdan Eugene
Принадлежит:

A multi-layer thin film filter () has a transmission spectrum that is within a preset tolerance of a preselected transmission spectrum. The filter includes spaced apart layers (, . . . ) of a material having a one refractive index; and layers of another material (, . . . ) having a higher refractive index. The latter layers (, . . . ) space apart the former layers (, . . . ). The thicknesses of the individual layers (, . . . ) are set by selecting initial values and then repeatedly computing a transmission spectrum by solving Maxell's equations and executing a nonlinear optimization algorithm until the a computed transmission spectrum converges to within the preset tolerance of the preselected transmission spectrum. By designing a filter () accordingly, a transmission spectrum can be achieved having high transmittance within a desired region and very low transmittance elsewhere. 1. A method of building a multi-layer thin film filter to have a transmission spectrum that is within a preset tolerance of a preselected transmission spectrum , the filter having layers of a lower refractive index material and layers of a higher refractive index material , the method comprising: setting initial values for the thicknesses of each of the layers, the thicknesses being expressed as a second value plus an initial vector of deviations;', "computing a transmission spectrum by solving Maxell's equations based on the first value, the second value, and the deviation vector;", 'executing a non-linear optimization algorithm to compute a new deviation vector such that a new computed transmission spectrum is closer to the preselected transmission spectrum, the non-linear optimization algorithm constrained to suggest individual layer deviations that are between preset minimum and maximum values; and', "repeatedly solving Maxwell's equations and executing the non-linear optimization algorithm until the deviation vector converges to a final deviation vector such that the computed ...

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Номер записи: 87
02-08-2018 дата публикации

Waveguide architecture for photonic neural component with multiplexed optical signals on inter-node waveguides

Номер: US20180217327A1
Автор: Jean Benoit Héroux, Seiji Takeda, Toshiyuki Yamane
Принадлежит: International Business Machines Corp

A photonic neural component including optical transmitters, optical receivers, inter-node waveguides formed on a board, multiplexers configured to multiplex input optical signals onto the inter-node waveguides, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides via the multiplexers, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.

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Номер записи: 88
11-08-2016 дата публикации

Endoscopic led light source

Номер: US20160231494A1
Автор: Benjamin Hyman Feingold, Simon S. Hui, Vasudev Nambakam
Принадлежит: Individual

An external endoscope light source system includes light emitting diodes for providing a light output to an endoscope. The light is provided to a fiber optic cable for transmission to the endoscope.

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Номер записи: 89
09-07-2020 дата публикации

METHOD FOR MAKING LIGHT-BLOCKING ARTICLES

Номер: US20200216632A1
Автор: Garman Douglas Edward, Lobo Lloyd Anthony, Nair Mridula, Shifley James Douglas
Принадлежит:

A foamed, opacifying element useful as a light-blocking article is prepared with a dry opacifying layer on a substrate. The dry opacifying layer is densified, followed by application of a functional composition formulation to form a functional composition upon drying and curing at a coverage of 0.5-15 g/m. The functional composition comprises at least: (i) glass particles such as hollow glass particles at a coverage of 0.1-2.2 g/cm, and can also include any or combination of a (iv) water-soluble or water-dispersible organic polymeric binder that may be crosslinked, thickeners, coating aids having an HLB of at least 5, (ii) lubricants, (iii) tinting materials, and (v) crosslinking agents. Among other properties, the presence of the glass particles provides additional heat absorption for the foamed, opacifying elements that can be formed into light-blocking materials. 1. A method for preparing a foamed , opacifying element , the method comprising the steps of:A) providing a substrate having a first opposing side and a second opposing side,B) applying a foamed aqueous composition onto the first opposing side of the substrate,C) drying the applied foamed aqueous composition, to provide a dry opacifying layer;D) densifying the dry opacifying layer to reduce its thickness by at least 20% compared to its original thickness;E) applying a functional composition formulation comprising (i) glass particles, to the dry opacifying layer, and thereby providing a foamed, opacifying element,', 'wherein:', 'the dry opacifying layer comprises:', '(a) at least 0.1 weight % and up to and including 35 weight % of porous particles, each porous particle comprising a continuous polymeric phase and discrete pores dispersed within the continuous polymeric phase, the porous particles having a mode particle size of at least 2 μm and up to and including 50 μm;', {'sub': 'g', '(b′) at least 10 weight % and up to and including 80 weight % of a matrix material that is derived from a (b) binder ...

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Номер записи: 90
18-07-2019 дата публикации

APPARATUSES AND METHODS FOR PHOTONIC COMMUNICATION AND PHOTONIC ADDRESSING

Номер: US20190219763A1
Автор: QUINLAN SION
Принадлежит: MICRON TECHNOLOGY, INC.

Apparatuses and methods for photonic communication and photonic addressing are disclosed herein. An example apparatus includes a plurality of photonic sources, a plurality of memory die, a logic die. Each of the plurality of photonic sources provides a photonic signal of a different wavelength and are provided to a first photonic path. Each memory die of the plurality of memory die includes a photonic modulation circuit coupled to the first photonic path, and further includes a photonic detector circuit coupled to a second photonic path. Each memory die of the plurality of memory die is associated with and addressed by a respective wavelength of a photonic signal. The logic die is coupled to the first and second photonic paths, and includes a plurality of photonic circuits. Each of the photonic circuits of the plurality of photonic circuits is associated with a respective wavelength of a photonic signal. 1. An apparatus , comprising:a photonic source layer;a plurality of memory dice coupled to the photonic source layer, each of the plurality of memory dice including a photonic filter, a photonic modulator, and a photonic detector circuit,the photonic filter of a die of the plurality of memory dice configured to receive a plurality of photonic signals of a plurality of wavelengths, respectively, and further configured to filter a photonic signal of the plurality of photonic signals of a wavelength of the plurality of wavelengths, and provide the filtered photonic signal to the photonic modulator of the die,the photonic modulator of the die configured to modulate the filtered photonic signal,the photonic detector circuit of the die or another die of the plurality of memory dice configured to receive the modulated photonic signal, and to detect and filter the modulated photonic signal or another modulated photonic signal associated with another photonic signal of the plurality of photonic signals, the photonic detector further configured to provide electrical signals ...

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Номер записи: 91
10-08-2017 дата публикации

OPTICAL MODE MATCHING

Номер: US20170230116A1
Автор: MATHAI, Panotopoulos Georgios, ROSENBERG Paul K, Sorin Wayne, Sr. Sagi V, Tan Michael Renne Ty
Принадлежит:

An apparatus includes a first and second VCSEL, each with an integrated lens. The VCSELs emit a first light beam having first optical modes at first wavelengths and a second light beam having second optical modes at second wavelengths. The apparatus also has an optical block with a first and second surface, a mirror coupled to the second surface, and a wavelength-selective filter coupled to the first surface. The first integrated lens mode matches the first beam to the optical block, and the second integrated lens mode matches the second beam to the optical block such that the first beam and second beam each have substantially a beam waist with a beam waist dimension at the first and second input region, respectively. An exit beam that includes light from the first beam and the second beam is output from the second surface of the optical block. 1. An apparatus comprising:a first vertical-cavity surface-emitting laser (VCSEL) to emit a first light beam having first optical modes at first wavelengths, wherein the first VCSEL has a first integrated lens;a transmissive optical block having a first input region on a first surface to receive the first beam, and an output region on a second surface to output an exit light beam, wherein the first integrated lens mode matches the first beam to the optical block such that the first beam has substantially a beam waist (BW) with a BW dimension at the first input region;a second VCSEL to emit a second light beam having second optical modes at second wavelengths, wherein the second VCSEL has a second integrated lens, wherein the optical block has a second input region on the first surface to receive the second beam, wherein the second integrated lens mode matches the second beam to the optical block such that the second beam has substantially the BW with approximately the BW dimension at the second input region;a mirror coupled to the second surface to reflect and focus the first beam to the second input region to substantially ...

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Номер записи: 92
25-08-2016 дата публикации

OPTICAL MODULES FOR WAVELENGTH MULTIPLEXING

Номер: US20160246007A1
Автор: Nakagawa Shigeru, Taira Yoichi, Tokunari Masao
Принадлежит:

Embodiments of the present invention provide optical modules which input and output wavelength multiplexed optical signals to and from an optical waveguide, and a manufacturing method thereof. In one embodiment, an optical module comprises light emitting and light receiving element pairs that are positioned on grooves of one or more optical waveguides, where each light emitting and light receiving element pair corresponds to a different wavelength of light. Each light emitting and light receiving element pair includes an optical pin comprising an inclined surface and a light selecting filter that are configured to reflect light of a corresponding wavelength from an optical waveguide to the light receiving element, and from the light emitting element to the optical waveguide. 1. An optical module comprising:an optical waveguide provided on a surface of a substrate;a groove provided on the optical waveguide on the surface of the substrate;an optical pin disposed in the groove of the optical waveguide, the optical pin being configured to allow light exiting from a light emitting element and light entering a light receiving element to pass through, the optical pin being provided with an inclined surface, wherein the inclined surface is inclined to turn, when light from the optical waveguide is reflected on the inclined surface, the reflected light to the light receiving element, and to turn, when light from the light emitting element is reflected, the reflected light to the optical waveguide; anda light selecting filter provided on the inclined surface of the optical pin, wherein the light selecting filter is configured to reflect light of the corresponding wavelength exiting from the light emitting element, select light of the corresponding wavelength from propagation light propagated through the optical waveguide, and reflect light to the light receiving element.2. The optical module according to claim 1 , wherein the inclined surface of the optical pin is a surface ...

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Номер записи: 93
25-08-2016 дата публикации

MULTIPLEXED OPTOELECTRONIC ENGINES

Номер: US20160246008A1
Автор: Mathai Sagi Varghese, Panotopoulos Georgios, Rosenberg Paul Kessler, Sorin Wayne Victor, Tan Michael Renne Ty
Принадлежит:

An example device includes a first semiconductor component comprising at least two lasers to emit light at a first wavelength; a second semiconductor component comprising at least two lasers to emit light at a second wavelength, the first wavelength being different from the second wavelength; and an optical multiplexer to receive light from two lasers at the first wavelength and light from two lasers at the second wavelength. The optical multiplexer component includes a first output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength to a first optical fiber, and a second output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength beams to a second optical fiber. 1. A device comprising:a first semiconductor component comprising at least two lasers to emit light at a first wavelength;a second semiconductor component comprising at least two lasers to emit light at a second wavelength, the first wavelength being different from the second wavelength; and a first output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength to a first optical fiber, and', 'a second output interface to couple light from one laser at the first wavelength and light from one laser at the second wavelength beams to a second optical fiber., 'an optical multiplexer to receive light from two lasers at the first wavelength and light from two lasers at the second wavelength, the optical multiplexer component including2. The device of claim 1 , further comprising: a first input interface to receive a first input signal from a first optical fiber, the first input signal including light at a first wavelength and light at a second wavelength;', 'a second input interface to receive a second input signal from a second optical fiber, the second input signal including light at a first wavelength and light at a second ...

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Номер записи: 94
24-08-2017 дата публикации

APPARATUSES AND METHODS FOR PHOTONIC COMMUNICATION AND PHOTONIC ADDRESSING

Номер: US20170242190A1
Автор: QUINLAN SION
Принадлежит: MICRON TECHNOLOGY, INC.

Apparatuses and methods for photonic communication and photonic addressing are disclosed herein. An example apparatus includes a photonic source layer that provides a plurality of photonic sources, each at a different wavelength, a plurality of second layers, and a third layer. Each of the plurality of second layers may be associated with a respective wavelength, and each of the plurality of second layers may include photonic filters tuned to their respective wavelength, a photonic modulator, and a photonic detector. The third layer may include a plurality of photonic circuits, with each of the plurality of photonic circuits associated with a respective second layer of the plurality of second layers. Additionally, each of the plurality of photonic circuits may include a photonic filter tuned to a respective wavelength associated with a respective second layer, a photonic detector and a photonic modulator. Modulated and unmodulated photonic signals may be provided from the second layers to the third layer and from the third layer to the second layers, where the respective wavelengths of the photonic signals acts like an address for each of the plurality of second layers. 1. An apparatus , comprising:first and second photonic paths;a first layer at least coupled to the first photonic path, the first layer configured to provide a plurality of photonic signals to the first photonic path, wherein each of the plurality of photonic signals has a different wavelength; a first photonic modulator circuit coupled to the first photonic path, wherein the first photonic filter is configured to receive the plurality of photonic signals from the first photonic path, filter a photonic signal of a respective wavelength from the plurality of photonic signals and provide the plurality of photonic signals including the filtered photonic signal of the respective wavelength to the first photonic path; and', 'a second photonic filter coupled to the second photonic path, wherein the second ...

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Номер записи: 95
24-08-2017 дата публикации

MULTI-CHANNEL INTEGRATED OPTICAL WAVELENGTH DIVISION MULTIPLEXING/DEMULTIPLEXING ASSEMBLY STRUCTURE

Номер: US20170242195A1
Автор: Hu Baiquan, Lin Xuefeng, Liu Chenggang, Yu Xianghong
Принадлежит:

The present invention provides a multi-channel integrated optical wavelength division multiplexing/demultiplexing assembly structure, comprising a light transmitting assembly and a light receiving assembly, the light transmitting assembly consisting of a laser chip array, a coupling lens set, a wavelength division multiplexing assembly, a single coupling lens and a single-core optical fiber, wherein the wavelength division multiplexing assembly comprises an optical waveguide chip, a band-pass filter set, a full-wavelength reflection unit, and multiple segments of waveguide optical paths that are continuously distributed in the optical waveguide chip in a Z-shape or W-shape, each of the multiple segments of waveguide optical paths has an input port and an output port which are distributed on left and right sides of the optical waveguide chip, respectively, the output ports comprise a tail end port which is arranged in correspondence to the single coupling lens, the band-pass filter set covers the input ports, and the full-wavelength reflection unit covers the output ports other than the tail end port. With the combination of the foregoing structure configurations, the technical problem of the presence of accuracy offset of the overall optical path is solved, and the effects of easy assembly, reduced cost and improved product yield are realized. 1. A multi-channel integrated optical wavelength division multiplexing/demultiplexing assembly structure , comprising a light transmitting assembly and a light receiving assembly , the light transmitting assembly consisting of a laser chip array , a coupling lens set , a wavelength division multiplexing assembly , a single coupling lens and a single-core optical fiber , characterized in that the wavelength division multiplexing assembly is arranged between the coupling lens set and the single coupling lens and comprises an optical waveguide chip , a band-pass filter set , a full-wavelength reflection unit and multiple segments ...

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Номер записи: 96
01-09-2016 дата публикации

BI-DIRECTIONAL OPTICAL MODULE COMMUNICATING WITH SINGLE OPTICAL FIBER AND OPTICAL TRANSCEIVER IMPLEMENTING THE SAME

Номер: US20160252690A1
Автор: Kawamura Masanobu
Принадлежит: Sumitomo Electric Industries, Ltd.

An optical module to receive Rx-light from a single optical fiber and to transmit Tx-light to the single optical fiber is disclosed. In the optical module, the Rx-light enters a photodiode (PD) in a shortest path within a coupling block that provides surfaces constituting the path, and the Tx-light emitted from a laser diode (LD) travels round within the coupling block and both of the Rx-light and the Tx-light enter the WDM filter in an acute angle. The lens to concentrate the Rx-light on the PD and that to collimate the Tx-light are precisely aligned with respective devices mounted on a printed circuit hoard (PCB). 1. A bi-directional optical module mounted on a circuit board , the bi-directional optical module optically coupling a semiconductor laser diode (LD) and a semiconductor photodiode (PD) each mounted on the circuit board with an inner fiber secured in the bi-directional optical module for transmitting a transmitting optical beam output from the LD and a receiving optical beam provided to the PD , the bi-directional optical module comprising:a base mounted on the circuit board;a lens including a first lens element and a second lens element, the lens being mounted on the base;a coupling block mounted on the base, the coupling block optically coupling the transmitting optical beam output from the LD through the first lens element with the inner fiber and the receiving optical beam output from the inner fiber with the PD through the second lens element; anda wavelength division multiplexing (WDM) filter secured in the coupling block,wherein the receiving optical beam provided from the inner fiber enters the WDM filter by an incident angle less than 20°, and the transmitting optical beam output from the LD enters the WDM filter by an angle substantially same with the incident angle.2. The bi-directional optical module of claim 1 ,wherein the incident angle is less than or equal to 10°.3. The bi-directional optical module of claim 1 ,wherein the transmitting ...

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Номер записи: 97
31-08-2017 дата публикации

Light signal multiplexer and light signal demultiplexer

Номер: US20170250773A1
Автор: Jie Hyun Lee, Joon Young HUH, Jun Ki Lee, Sae Kyoung Kang
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A light signal multiplexer and a light signal demultiplexer corresponding to the light signal multiplexer. The light signal multiplexer may include a reflector and a filter, in which the reflector is disposed on a plurality of input light paths to allow a plurality of light signals input along the input light paths to be reflected toward the filter disposed on at least one output light path, and the filter is disposed to allow the light signals reflected toward the filter to be reflected along the at least one output light path, and thus the light signal multiplexer may individually set the input light paths for the light signals.

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Номер записи: 98
07-09-2017 дата публикации

METHOD AND APPARATUS FOR PROVIDING MULTIPORT FREE-SPACE WAVELENGTH-DIVISION MULTIPLEXING (WDM) DEVICE USING A PRISM

Номер: US20170254958A1
Автор: Yue Xuefeng
Принадлежит:

A multiport free-space wavelength division multiplexing (“WDM”) device is capable of handling multiple optical signals carried in multiple wavelengths (“λ”) using a prism. The WDM device includes an input collimator, prism, and optical filter. The input collimator receives an optical beam containing multiple wavelengths λtraveling through free-space. The prism uses at least two (2) surfaces to generate a first optical beam which travels in opposite direction of the optical beam. The optical filter is situated at a predefined angle with respect to the interface surface of the prism for facilitating frequency separation as well as extracts a first wavelength (“λ”) from λto form a first light signal with λand form a second optical beam with the remaining wavelengths of λ. A collimator is used to guide the first light signal to a port. 1. An optical wavelength-division multiplexing (“WDM”) device , comprising:an input collimator configured to receive an optical beam containing a plurality of wavelengths and facilitate the optical beam to travel through free-space;a prism with an interface surface optically coupled to the input collimator and utilizing at least two (2) surfaces to generate a first optical beam traveling in opposite direction of the optical beam in response to the optical beam;{'sub': 1', '1, 'a first optical filter having an optical receiving surface which is situated at a predefined angle with respect to the interface surface of the prism for facilitating frequency separation and configured to extract a first wavelength (“λ”) from the plurality of wavelengths to form a first light signal with λand form a second optical beam with remaining wavelengths of the first optical beam; and'}{'sub': '1', 'a first collimator optically coupled to the prims and configured to receive the first light signal with the λfrom the first optical filter.'}2. The optical WDM device of claim 1 , further comprising a subassembly coupled to the prism and configured to facilitate ...

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Номер записи: 99
15-08-2019 дата публикации

FIBER COUPLED LASER SOURCE PUMP WITH WAVELENGTH DIVISION MULTIPLEXER, ISOLATOR, TAP FILTER, AND PHOTODETECTOR

Номер: US20190250336A1
Автор: Guérin Nicolas, GUO Yonghong, HONG Xia, XIAO Chang
Принадлежит:

A pump laser package may include an input fiber to send signal light on a first optical path inside a package, a source to send pump light on a second optical path inside the package, and an output fiber on a third optical path inside the package. The pump laser package may include a WDM filter inside the package to receive the signal light on the first optical path and send the signal light on the third optical path, and receive the pump light on the second optical path and send the pump light on the third optical path. The pump laser package may include an isolator inside the package to transmit the signal light in a first direction, and block the signal light in a second direction, or a photo-diode to receive a portion of the signal light sent on a fourth optical path. 1. A pump laser package , comprising:an input fiber to send signal light on a first optical path in free-space inside a package;a source to send pump light on a second optical path in free-space inside the package;an output fiber on a third optical path in free-space inside the package; receive the signal light on the first optical path and send the signal light on the third optical path, and', 'receive the pump light on the second optical path and send the pump light on the third optical path; and, 'a wavelength division multiplexing (WDM) filter inside the package to transmit the signal light in a first direction on the first optical path, and', 'block the signal light in a second direction on the first optical path., 'an isolator inside the package to2. The pump laser package of claim 1 , further comprising a first lens arranged on the first optical path and the third optical path claim 1 , and a second lens and a third lens arranged on the second optical path claim 1 ,where the third lens is a negative lens,where the second lens and the third lens are separated by free-space inside the package, andwhere the first lens and the third lens are arranged to create a virtual image, associated with ...

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