Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 57. Отображено 57.
19-02-2008 дата публикации

Optical interface unit

Номер: US0007331721B2
Автор: Michael Dudek, Michael Tartaglia, Carl Embry, Mark Stiehl, Timothy Bingaman, Steven Anderson, Dale Isaacson, DUDEK MICHAEL, TARTAGLIA MICHAEL, EMBRY CARL, STIEHL MARK, BINGAMAN TIMOTHY, ANDERSON STEVEN, ISAACSON DALE
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

In an exemplary embodiment of the present invention, an optical interface unit provides an interface between an optoelectronic device and industry standard MTP/MPO connectors. The optical interface unit axially aligns the core of a fiber with the optoelectronic device and interfaces that fiber to the standardized connector. In addition, the optical interface unit further provides a standardized interface for visible contact connection between the individual fiber stubs and the terminated fibers in the standardized connector. The optical interface unit therefore maximizes coupling from the optoelectronic device with the standardized connector.

Подробнее
Номер записи: 1
18-07-2006 дата публикации

Method and apparatus for hermetic sealing of assembled die

Номер: US0007078263B2
Автор: William Kit Dean, DEAN WILLIAM KIT
Принадлежит: Optical Communications Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATIONS PRODUCTS, INC.

An optically transparent, hermetic coating is locally formed on die and other components already assembled in an existing nonhermetic structure. The local hermetic sealing of an OSA includes providing an OSA having at least one exposed optoelectronic component, and providing a paralene source. The method provides for positioning a mask between the paralene source and the OSA, the mask including an opening aligned with a first region of the OSA. The first region includes at least one of the exposed optoelectronic components. The paralene source is then caused to generate paralene such that a permanent paralene coating is deposited through the opening and on the first region of the OSA. The permanent paralene coating essentially hermetically seals the first region. The permanent paralene coating is chosen to be transparent to the wavelength of light emitted and/or used in the optical sub-assembly.

Подробнее
Номер записи: 2
24-05-2005 дата публикации

Long wavelength vertical cavity surface emitting laser

Номер: US0006898215B2
Автор: Ryan Likeke Naone, Andrew W. Jackson, Leo M. F. Chirovsky, NAONE RYAN LIKEKE, JACKSON ANDREW W, CHIROVSKY LEO M F, JACKSON ANDREW W., CHIROVSKY LEO M. F.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

Selectively oxidized vertical cavity lasers emitting at about 1290 nm using InGaAsN quantum wells that operate continuous wave below, at and above room temperature are reported. The lasers employ a semi-insulating GaAs substrate for reduced capacitance, high quality, low resistivity AlGaAs DBR mirror structures, and a strained active region based on InGaAsN. In addition, the design of the VCSEL reduces free carrier absorption of 1.3 mum light in the p-type materials by placing relatively higher p-type dopant concentrations near standing wave nulls.

Подробнее
Номер записи: 3
20-01-2004 дата публикации

Method and apparatus for controlling substrate temperature and layer thickness during film formation

Номер: US0006679946B1
Автор: Andrew William Jackson, Mark J. Dalberth, JACKSON ANDREW WILLIAM, DALBERTH MARK J, DALBERTH MARK J.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for determining substrate temperature and the mirror center of a film structure formed on the substrate utilizes a transmission intensity spectrum of light to determine mirror center and a normalized transmission intensity spectrum of light to determine substrate temperature. White light is transmitted through the substrate and the film structure during the film structure formation process. Also during the film formation process, a reflected light intensity spectrum is obtained using the same or another light source, for light reflected by the film structure. Substrate temperature and mirror center may be determined during formation of the film structure and, based on the measured temperature and mirror center, the mirror center may be adjusted by changing film formation conditions during the film formation process to vary the thickness of the films being formed. The method and apparatus find particular application in the in-situ monitoring and adjustment of distributed ...

Подробнее
Номер записи: 4
25-04-2006 дата публикации

Pluggable optical transceiver with sliding actuator

Номер: US0007033191B1
Автор: Chi Hung Cao, CAO CHI HUNG
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A pluggable optical transceiver module includes a housing with first and second ends, upper and lower surfaces, a channel and an opening slot formed thereon. A locking boss is slidably mounted within the housing and has a locking detent projecting therefrom and through the opening slot of the housing to engage an opening in a latching tab located in a receptacle cage. The locking boss also has a top end with an inclined surface, which is disposed within the channel of the housing. An actuator arm is slidably mounted within the channel of the housing and has an internal end with an inclined surface thereon. The inclined surface of the actuator arm cooperates with the inclined surface of the of the locking boss to free the locking detent from the latching tab of the receptacle cage when the actuator arm is moved within the channel of the housing.

Подробнее
Номер записи: 5
30-05-2006 дата публикации

Closely-spaced VCSEL and photodetector for application requiring their independent operation

Номер: US0007053415B2
Автор: Stanley E. Swirhun, Jeffrey W. Scott, SWIRHUN STANLEY E, SCOTT JEFFREY W, SWIRHUN STANLEY E., SCOTT JEFFREY W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A monolithically integrated VCSEL and photodetector, and a method of manufacturing the same, are disclosed for applications where the VCSEL and photodetector require separate operation such as duplex serial data communications applications. A first embodiment integrates a VCSEL with an MSM photodetector on a semi-insulating substrate. A second embodiment builds layers of a p-i-n photodiode on top of layers forming a VCSEL using a standard VCSEL process. The p-i-n layers are etched away in areas where VCSELs are to be formed and left where photodetectors are to be formed. The VCSELs underlying the photodetectors are inoperable, and serve to recirculate photons which are not initially absorbed back into the photodetector. The transmit and receive pairs are packaged into a single package for interface to multifiber ferrules. The distance between the devices is precisely defined photolithographically, thereby making alignment easier. In a further alternate embodiment, a FET is coupled to the ...

Подробнее
Номер записи: 6
29-06-2004 дата публикации

Optical subassembly enclosure

Номер: US0006755578B1
Автор: Blake Mynatt, Dennis King, Jason Yorks, William Kit Dean, Mark Stiehl, MYNATT BLAKE, KING DENNIS, YORKS JASON, DEAN WILLIAM KIT, STIEHL MARK
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A housing for optoelectronic devices provides EMI shielding and axial strain suppression for optical fibers coupled to optoelectronic devices retained within the housing. The housing includes an internal septum for EMI shielding and a grounding scheme including relief features of the conductive housing coupled to internal grounding strips. The housing provides a first exemplary engaging/locking feature including an orthogonal tongue and a groove that receives the tongue, and a second exemplary engaging/locking feature that includes a groove having an intermittently varying cross-sectional area and that retains a gasket of constant cross-sectional area. Arms extend from tho housing and retain an optical fiber that is secured to the arm by an adhesive such that axial strain is not exerted at the point of optical coupling and a high optical coupling efficiency is maintained. In an exemplary embodiment, the housing includes an opening through a bottom surface, the opening bounded by beveled ...

Подробнее
Номер записи: 7
20-02-2007 дата публикации

Fiber optic module packaging architecture for integrated circuit and optical subassembly integration

Номер: US0007181099B2
Автор: Jason Yorks, William Kit Dean, Bob Arnold, Blake Mynatt, YORKS JASON, DEAN WILLIAM KIT, ARNOLD BOB, MYNATT BLAKE
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A fiber optic module that includes a packaged integrated circuit chip mounted on a top surface of a printed circuit or other mounting board is disclosed. The integrated circuit chip is electrically coupled to an optical subassembly (OSA) mounted along an edge of the printed circuit board and capable of emitting or receiving light traveling parallel to the printed circuit board. The packaged IC chip is electrically coupled to the OSA through at least one microwave via extending through the board and a conductive trace formed on the opposed bottom surface of the board.

Подробнее
Номер записи: 8
04-03-2008 дата публикации

Refined mirror structure for reducing the effect of feedback on a VCSEL

Номер: US0007339969B2
Автор: Leo Chirovsky, CHIROVSKY LEO
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A VCSEL is provided that integrates an absorbing layer sandwiched within a null of the standing wave in the emitting mirror to reduce the reflectivity and transmissivity of the emitting mirror as seen by the feedback optical wave, with minimal effect on the reflectivity of the emitting mirror as seen by the light exiting the cavity. The absorbing layer may be made of a suitable absorbing material, such as a GaAs layer in a laser emitting near 850 nm or highly doped p-layer, for instance, and may be disposed epitaxially in a semiconductor or metamorphic mirror. The absorbing layer sandwich may be incorporated into the VCSEL after the last mirror pair or at any desired position with the emitting mirror array.

Подробнее
Номер записи: 9
13-04-2004 дата публикации

Low thermal impedance DBR for optoelectronic devices

Номер: US0006720585B1
Автор: John Wasserbauer, Ryan Likeke Naone, Andrew William Jackson, WASSERBAUER JOHN, NAONE RYAN LIKEKE, JACKSON ANDREW WILLIAM
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A low thermal impedance optoelectronic device includes an optical cavity adjacent a low thermal impedance DBR that provides improved heat dissipation and temperature performance. The thermal impedance of the DBR may be reduced by increasing the relative or absolute thickness of a layer of high thermal conductivity material relative to a layer of low thermal conductivity material for at least a portion of the mirror periods. The thermal impedance may also be reduced by increasing the distance between phonon scattering surfaces by increasing the thickness of the high thermal conductivity layer, the low thermal conductivity layer or both.

Подробнее
Номер записи: 10
06-12-2005 дата публикации

Post amplifier array integrated circuit

Номер: US0006972620B2
Автор: Nelson Diaz, Michael Thomas Dudek, DIAZ NELSON, DUDEK MICHAEL THOMAS
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optical communication system that includes a multi-channel post amplifier assembly with flexible output configurations for amplifying optical-to-electrical converted signals on selectable groups of amplifier channels is provided. The post amplifier assembly, when implemented on a single IC chip, is capable of operating with either the 2.5V or 3.3V of power supply. In addition, the IC chip containing the post amplifier assembly provides capability to selectively turn off one or more post amplifier channels during operation. Further, the post amplifiers provide integral auto zero function without requiring a use of external capacitors.

Подробнее
Номер записи: 11
23-03-2004 дата публикации

Plastic encapsulation of optoelectronic devices for optical coupling

Номер: US0006709170B2
Автор: Michael L. Tartaglia, Carl Embry, Mark Stiehl, Timothy Bingaman, TARTAGLIA MICHAEL L, EMBRY CARL, STIEHL MARK, BINGAMAN TIMOTHY, TARTAGLIA MICHAEL L.
Принадлежит: Optical Communications Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATIONS PRODUCTS, INC.

A method and apparatus for encapsulating optoelectronic devices provides for accurately positioning and shaping an encapsulant by actively referencing the device die upon which the optoelectronic devices are formed. A molding tool is accurately aligned to the optoelectronic devices in the x, y and theta directions using mechanical guides and is aligned in the z direction by actively referencing the device die. The shaped encapsulant is preferably an angled wedge having a minimum thickness over the optoelectronic devices to provide a high coupling efficiency and an increased thickness in other portions to fully encapsulate wire bond connections, for example. The method also provides for using the mechanical guides to align and couple optical fibers to the optoelectronic devices. In one exemplary embodiment, the end face of the optical fiber forms a conterminous interface with the top surface of the encapsulant, and the interface is obliquely angled with respect to the surface of the device ...

Подробнее
Номер записи: 12
11-10-2005 дата публикации

Method and apparatus for backside monitoring of VCSELs

Номер: US0006954474B2
Автор: Andrew W. Jackson, JACKSON ANDREW W, JACKSON ANDREW W.
Принадлежит: Optical Communications Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATIONS PRODUCTS, INC.

A VCSEL (vertical cavity surface emitting laser) is formed on the top surface of the substrate having an opposed bottom surface. In one exemplary embodiment, the opposed bottom surface is polished and coated with an anti-reflective coating. A photodetector is disposed beneath the bottom surface and is capable of detecting light emitted by the VCSEL. In another embodiment, an angle selective filter is disposed between the photodetector and the unpolished and uncoated bottom surface. The apparatus urges light emitted by the VCSEL to be detected by the photodetector and limits light from other sources from reaching the photodetector. A method for monitoring the optical output of a VCSEL includes providing one of the exemplary apparatuses, causing the VCSEL to emit light that is detected by the photodetector, and adjusting the optical output of the VCSEL based on the amount of light detected by the photodetector.

Подробнее
Номер записи: 13
03-08-2004 дата публикации

Pluggable optical transceiver with pivoting actuator lever

Номер: US0006771511B2
Автор: Hy Bui, BUI HY
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A pluggable optical transceiver having a pivotable actuator assembly for quickly and easily removing the transceiver from a receptacle cage is provided. The actuator assembly includes a pivotable lever arm and a slide member that can slide in a forward and rearward direction. Force is first applied to the actuator lever so that it pivots and rotates to a different position. Then, as force is applied to the pivoted actuator lever, the slide member slides rearwardly causing the transceiver to become disengaged from the receptacle. In this manner, the transceiver is released and can be removed easily from the receptacle.

Подробнее
Номер записи: 14
29-06-2004 дата публикации

Hermetically sealed transmitter optical subassembly

Номер: US0006757308B1
Автор: Joachim Eldring, Blake Mynatt, Kevin Malone, Rich Adams, ELDRING JOACHIM, MYNATT BLAKE, MALONE KEVIN, ADAMS RICH
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

During assembly of a transmitter optical subassembly (TOSA), an alignment in Z-direction between a fiber stub array (FSA) and a VCSEL array is performed first, then an alignment in X-Y direction is performed. A rough pre-alignment in X-Y direction may also be performed prior to the alignment in Z-direction. A vertical cavity surface emitting laser (VCSEL) array may be hermetically sealed using a lens assembly or by using a separate lid assembly. The hermetic sealing and attaching of different components may be achieved by laser welding and/or soldering or any other suitable method.

Подробнее
Номер записи: 15
15-06-2004 дата публикации

Single mode vertical cavity surface emitting laser

Номер: US0006751245B1
Автор: John G. Wasserbauer, Jeffrey W. Scott, WASSERBAUER JOHN G, SCOTT JEFFREY W, WASSERBAUER JOHN G., SCOTT JEFFREY W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A surface emitting laser with spatially varying optical loss to provide single mode operation. The optical loss may be introduced with an anti-phased ohmic contacts. Current injection may be constricted to a diameter that is different than the diameter of the ohmic aperture, allowing for optimization of carrier profiles for high-speed performance. Methods for index guiding are introduced to further the reproducibility of the invention.

Подробнее
Номер записи: 16
04-08-2009 дата публикации

Wide temperature range uncooled transceiver module for uncontrolled environments

Номер: US0007570679B2
Автор: Peter Gibson, Michael Stimson, GIBSON PETER, STIMSON MICHAEL
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A laser transmitter within an optical transceiver includes a heating element. The heating element is coup led to the laser package and is controlled to allow the laser to be heated to a higher temperature than the ambient temperature when low environmental temperature extremes occur. The transmitter includes a semiconductor laser having an optimal operational temperature range, a laser driver circuit coupled to the laser that provides a modulation current and a bias current to drive the laser, a heating element thermally coupled to the laser and a heating control circuit that monitors the bias current applied to the laser for drops in bias current that are indicative of drops in the surrounding ambient temperature. In response to a drop in bias current, the control circuitry energizes the heating element to provide heat to the laser.

Подробнее
Номер записи: 17
28-12-2004 дата публикации

Closely-spaced VCSEL and photodetector for applications requiring their independent operation

Номер: US0006835992B1
Автор: Stanley E. Swirhun, Jeffrey W. Scott, SWIRHUN STANLEY E, SCOTT JEFFREY W, SWIRHUN STANLEY E., SCOTT JEFFREY W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A monolthically integrated VCSEL and photodetector, and a method of manufacturing same, are disclosed for applications where the VCSEL and photodetector require separate operation such as duplex serial data communications applications. A first embodiment integrates a VCSEL with an MSM photodetector on a semi-insulating substrate. A second embodiment builds the layers of a p-i-n photodiode on top of layers forming a VCSEL using a standard VCSEL process. The p-i-n layers are etched away in areas where VCSELs are to be formed and left where the photodetectors are to be formed. The VCSELs underlying the photodetectors are inoperable, and serve to recirculate photons back into the photodetector not initially absorbed. The transmit and receive pairs are packaged in a single package for interface to multifiber ferrules. The distance between the devices is precisely defined photolithographically, thereby making alignment easier.

Подробнее
Номер записи: 18
26-04-2005 дата публикации

Pluggable optical transceiver with push-pull actuator handle

Номер: US0006885560B2
Автор: Adam Zaremba, ZAREMBA ADAM
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A pluggable optical transceiver having a having a slidable actuator assembly for quickly and easily removing the transceiver from a receptacle cage assembly is provided. The actuator assembly includes a curved actuator handle and slide member that can slide in a forward and rearward direction. As force is exerted on slide member, the actuator and slide member slide rearwardly causing the transceiver to become disengaged from the receptacle. In this manner, the transceiver is released and can be removed easily from the receptacle.

Подробнее
Номер записи: 19
24-05-2005 дата публикации

Apparatus and method for VCSEL monitoring using scattering and reflecting of emitted light

Номер: US0006898219B2
Автор: Kevin Malone, Jeffrey Scott, Dale Isaacson, MALONE KEVIN, SCOTT JEFFREY, ISAACSON DALE
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An apparatus and method for monitoring the optical output of vertical cavity surface emitting lasers (VCSELS) utilizes a portion of light emitted by the VCSEL and scatters and/or reflects this portion of emitted light so that it is directed towards a detecting surface of a photodetector. In one embodiment, scattering elements may be incorporated within the epoxy or other coupling medium used to couple the VCSEL to the optical fiber. In another embodiment, the VCSEL may be coupled to an optical fiber secured within a ferrule which has an end surface capable of reflecting or scattering light and directing the light towards the photodetector. In another embodiment, a reflective integrating member may be alternatively or additionally used to reflect a portion of the emitted light to the photodetector. The photodetector, in conjunction with electrical circuitry to which it is coupled, develops an electrical signal which may be provided to laser control means to control and adjust the optical ...

Подробнее
Номер записи: 20
19-04-2005 дата публикации

Mirror structure for reducing the effect of feedback on a VCSEL

Номер: US0006882673B1
Автор: John Wasserbauer, Jeffrey W. Scott, WASSERBAUER JOHN, SCOTT JEFFREY W, SCOTT JEFFREY W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An exemplary embodiment of the present invention integrates an absorbing layer into the emitting mirror of a VCSEL to reduce the reflectivity of the emitting mirror as seen by the feedback optical wave. The absorbing layer may be made of a suitable semiconductor material, such as a GaAs layer in a laser emitting near 850 nm or highly doped p-layer, and may disposed epitaxially in a semiconductor or metamorphic mirror. Alternatively, a metal layer may be disposed in the dielectric portion of a hybrid mirror or all-dielectric mirror.

Подробнее
Номер записи: 21
18-01-2005 дата публикации

Encapsulated optoelectronic devices with controlled properties

Номер: US0006845118B1
Автор: Jeffrey W. Scott, SCOTT JEFFREY W, SCOTT JEFFREY W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optoelectronic device, such as a VCSEL, is disclosed whose transmission does not change upon encapsulation by a material such as plastic, epoxy or other suitable encapsulant with a known index of refraction. The surface reflection of the VCSEL surface is very different depending on whether it is terminated in air or the encapsulant, with a much larger reflection in the case of air. It is known that the surface reflection can be made out of phase with the rest of the mirror, effectively increasing the transmission. The amount of the transmission increase can be adjusted by controlling the thickness of the surface layer. Once the VCSEL is encapsulated, the surface reflection is reduced, and the transmission at the facet is increased but the dephased reflection is also reduced. Depositing a surface layer whose index of refraction is similar to the encapsulant, and adjusting the surface layer thickness correctly, the overall transmission from the laser into the terminating material is unchanged ...

Подробнее
Номер записи: 22
03-05-2005 дата публикации

High speed optical subassembly with ceramic carrier

Номер: US0006888169B2
Автор: Kevin Malone, Christine Mollenkopf, Jason Yorks, Lance Thompson, Blake Mynatt, Mark Stiehl, Tess Abidi, William Kit Dean, Robert A. Arnold, Richard J. Adams, George W. Jarriel, Jr., Dale Isaacson, MALONE KEVIN, MOLLENKOPF CHRISTINE, YORKS JASON, THOMPSON LANCE, MYNATT BLAKE, STIEHL MARK, ABIDI TESS, DEAN WILLIAM KIT, ARNOLD ROBERT A, ADAMS RICHARD J, JARRIEL JR GEORGE W, ISAACSON DALE, ARNOLD ROBERT A., ADAMS RICHARD J., JARRIEL, JR. GEORGE W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A multilayer ceramic carrier for an optical element includes a terraced cavity for retaining a vertically receiving or vertically emitting optical element. The multilayer ceramic carrier includes conductive traces interposed between the ceramic layers and which extend into the terraced cavity along the trenches formed in the cavity. A vertical cavity surface emitting laser or vertically receiving optical element is wire bonded to the conductive traces which extend into the cavity. In one embodiment, the terraced cavity of the multilayer ceramic carrier includes a VCSEL and photodetector therein, the photodetector capable of monitoring the output optical power of the VCSEL. The method for forming the multilayer ceramic carrier includes forming a plurality of layers of ceramic tape, joining the layers, then co-firing the stacked layers. The multilayer ceramic carrier is joined to a plastic optical housing which includes an aperture for securing an optical fiber. The fiber launch direction ...

Подробнее
Номер записи: 23
28-03-2006 дата публикации

Apparatus and methods for using fiber optic arrays in optical communication systems

Номер: US0007020359B2
Автор: Robert C. Mayer, MAYER ROBERT C, MAYER ROBERT C.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

Systems and methods for optical communication that may be employed to couple together fiber optic arrays of two or more optical communication modules using parallel fiber optic connectors and physically distinct and signal-independent optical communication paths. The disclosed systems and methods may be employed to provide separate signal-independent communication paths having signal transport characteristics that meet standards required for single fiber single point-to-single point applications.

Подробнее
Номер записи: 24
21-11-2006 дата публикации

Method and apparatus for performing whole wafer burn-in

Номер: US0007138284B2
Автор: John Wasserbauer, Stewart A. Feld, WASSERBAUER JOHN, FELD STEWART A, FELD STEWART A.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for burning in a semiconductor wafer having a plurality of active devices utilizes temporary conductive interconnect layers to separately couple at least a portion of the anodes of the active devices together as well as at least a portion of the cathodes of the devices together. A simplified probed pad, having a reduced number of contacts may then be utilized to apply a substantially constant voltage or current to the devices. The temporary conductive interconnect layer may be patterned to include device level resistors or array level resistors that may be used to mitigate the effects of short circuits or open circuits on the processing of the devices.

Подробнее
Номер записи: 25
01-11-2005 дата публикации

Method for making hermetically sealed transmitter optical subassembly

Номер: US0006960032B2
Автор: Joachim Eldring, Blake Mynatt, Kevin Malone, Rich Adams, ELDRING JOACHIM, MYNATT BLAKE, MALONE KEVIN, ADAMS RICH
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method for making a transmitter optical subassembly (TOSA) is provided. In the method, an alignment in the Z-direction between a fiber stub array (FSA) and a VCSEL array is performed first. Then, an alignment in the X-Y direction is performed. A rough prealignment in the X-Y direction may also be performed prior to the alignment in Z-direction. A vertical cavity surface emitting laser (VCSEL) array may be hermetically sealed using a lens assembly or by using a separate lid assembly. The hermetic sealing and attaching of different components may be achieved by laser welding and/or soldering or any other suitable method.

Подробнее
Номер записи: 26
27-06-2006 дата публикации

Optical signal receiver with RPM, data and data bar output

Номер: US0007068951B2
Автор: Reza Miremadi, MIREMADI REZA
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optical signal receiver system provides for five (5) signals, namely VCC, Ground, RPM (Receiver input Power Monitor), Data, and Data Bar outputs, using only the four external pins of a conventional TO-style can package. To provide for five signals on only four pins, two of the output signals are superimposed on each other in which one has a DC value (RPM) and one has an AC value (Data or Data Bar). Once the combined signal comes out of the TO can, the combined signal can be separated into two separate signals using a capacitor which blocks the DC signal (Data or Data Bar) and allows the AC signal to go through. The DC information is then extracted by filtering the AC information from the combined signal with a Current Sense Circuit.

Подробнее
Номер записи: 27
10-08-2004 дата публикации

High speed detectors having integrated electrical components

Номер: US0006774448B1
Автор: John Hart Lindemann, Michael Thomas Dudek, David Galt, LINDEMANN JOHN HART, DUDEK MICHAEL THOMAS, GALT DAVID
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An opto-electronic device configured as a photodetector has a capacitor and/or resistor monolithically formed on a surface of the photodetector. The capacitor capacitively couples the AC ground of the photodetector to the bias terminal of the photodetector. The on chip capacitor design eliminates the inductance of external circuit traces between the power supply and an external capacitor. The resistor forces the AC return current of the photodetector through the AC ground in preference to the typical (DC bias terminal) path. Combinations of capacitors and resistors are particularly effective in reducing crosstalk among adjacent detectors in arrays.

Подробнее
Номер записи: 28
21-11-2006 дата публикации

Apparatus and methods for using fiber optic arrays in optical communication systems

Номер: US0007139452B2
Автор: Robert C. Mayer, Michael D. Wilcox, MAYER ROBERT C, WILCOX MICHAEL D, MAYER ROBERT C., WILCOX MICHAEL D.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

Systems and methods for optical communication that may be employed to couple together fiber optic arrays of two or more optical communication modules using parallel fiber optic connectors and physically distinct and signal-independent optical communication paths. The disclosed systems and methods may be employed to provide separate signal-independent communication paths having signal transport characteristics that meet standards required for single fiber single point-to-single point applications.

Подробнее
Номер записи: 29
11-09-2007 дата публикации

High speed laser array driver

Номер: US0007269194B2
Автор: Nelson Diaz, Michael Dudek, Carl Embry, DIAZ NELSON, DUDEK MICHAEL, EMBRY CARL
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for driving lasers. An example laser driving system includes a laser current controller for providing a modulation signal and a bias signal. The modulation signal and bias signal is used by a plurality of high-speed current drivers that accept the modulation signal and the bias signal and produce a plurality of laser drive signals. The example system also has a disable input that disconnects power from a high-speed current driver when the high-speed current driver is not in use. The exemplary system develops the modulation and bias signals by feeding back a signal developed from detection of laser light from one of the lasers driven by the system. The laser may be a data laser or a control laser that is modulated by a signal having a lower frequency than the data lasers. If a control laser is used then the photodetector circuit used for feedback can have a lower frequency response because of the lower frequency of the control laser signal. The photodetector system ...

Подробнее
Номер записи: 30
13-07-2004 дата публикации

Pluggable optical transceiver with push-pull actuator release collar

Номер: US0006762940B2
Автор: Adam Zaremba, ZAREMBA ADAM
Принадлежит: Optical Communications Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATIONS PRODUCTS, INC.

A pluggable optical transceiver having a slidable actuator assembly for quickly and easily removing the transceiver from a receptacle cage assembly is provided. The actuator assembly includes an actuator collar and slide member that can slide in a forward and rearward direction. As force is exerted on the actuator collar, the actuator and slide member slide rearwardly causing the transceiver to become disengaged from the receptacle. In this manner, the transceiver is released and can be removed easily from the receptacle.

Подробнее
Номер записи: 31
27-07-2004 дата публикации

Optical interface unit

Номер: US0006767141B1
Автор: Michael Dudek, Michael Tartaglia, Carl Embry, Mark Stiehl, Timothy Bingaman, Steven Anderson, Dale Isaacson, DUDEK MICHAEL, TARTAGLIA MICHAEL, EMBRY CARL, STIEHL MARK, BINGAMAN TIMOTHY, ANDERSON STEVEN, ISAACSON DALE
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

In an exemplary embodiment of the present invention, an optical interface unit provides an interface between an optoelectronic device and industry standard MTP/MPO connectors. The optical interface unit axially aligns the core of a fiber with the optoelectronic device and interfaces that fiber to the standardized connector. In addition, the optical interface unit further provides a standardized interface for visible contact connection between the individual fiber stubs and the terminated fibers in the standardized connector. The optical interface unit therefore maximizes coupling from the optoelectronic device with the standardized connector.

Подробнее
Номер записи: 32
06-12-2005 дата публикации

High-speed laser array driver

Номер: US0006973107B2
Автор: Nelson Diaz, Michael Dudek, Carl Embry, DIAZ NELSON, DUDEK MICHAEL, EMBRY CARL
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for driving lasers. An example laser driving system includes a laser current controller for providing a modulation signal and a bias signal. The modulation signal and bias signal is used by a plurality of high-speed current drivers that accept the modulation signal and the bias signal and produce a plurality of laser drive signals. The example system also has a disable input that disconnects power from a high-speed current driver when the high-speed current driver is not in use. The exemplary system develops the modulation and bias signals by feeding back a signal developed from detection of laser light from one of the lasers driven by the system. The laser may be a data laser or a control laser that is modulated by a signal having a lower frequency than the data lasers. If a control laser is used then the photodetector circuit used for feedback can have a lower frequency response because of the lower frequency of the control laser signal. The photodetector system ...

Подробнее
Номер записи: 33
09-09-2003 дата публикации

Hybrid vertical cavity laser with buried interface

Номер: US0006618414B1
Автор: John Wasserbauer, Leo M. F. Chirovsky, WASSERBAUER JOHN, CHIROVSKY LEO M F, CHIROVSKY LEO M. F.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A vertical cavity laser includes an optical cavity adjacent to a first mirror, the optical cavity having a semiconductor portion and a dielectric spacer layer. A dielectric DBR is deposited adjacent to the dielectric spacer layer. The interface between the semiconductor portion of the optical cavity and the dielectric spacer layer is advantageously located at or near a null in the optical standing wave intensity pattern of the vertical cavity laser to reduce the losses or scattering associated with that interface.

Подробнее
Номер записи: 34
16-05-2006 дата публикации

High speed optical subassembly with ceramic carrier

Номер: US0007045824B2
Автор: Kevin Malone, Christine Mollenkopf, Jason Yorks, Lance Thompson, Blake Mynatt, Mark Stiehl, Tess Abidi, William Kit Dean, Robert A. Arnold, Richard J. Adams, George W. Jarriel, Jr., Dale Isaacson, MALONE KEVIN, MOLLENKOPF CHRISTINE, YORKS JASON, THOMPSON LANCE, MYNATT BLAKE, STIEHL MARK, ABIDI TESS, DEAN WILLIAM KIT, ARNOLD ROBERT A, ADAMS RICHARD J, JARRIEL JR GEORGE W, ISAACSON DALE, ARNOLD ROBERT A., ADAMS RICHARD J., JARRIEL, JR. GEORGE W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A multilayer ceramic carrier for an optical element includes a terraced cavity for retaining a vertically receiving or vertically emitting optical element. The multilayer ceramic carrier includes conductive traces interposed between the ceramic layers and which extend into the terraced cavity along the trenches formed in the cavity. A vertical cavity surface emitting laser or vertically receiving optical element is wire bonded to the conductive traces which extend into the cavity. In one embodiment, the terraced cavity of the multilayer ceramic carrier includes a VCSEL and photodetector therein, the photodetector capable of monitoring the output optical power of the VCSEL. The method for forming the multilayer ceramic carrier includes forming a plurality of layers of ceramic tape, joining the layers, then co-firing the stacked layers. The multilayer ceramic carrier is joined to a plastic optical housing which includes an aperture for securing an optical fiber. The fiber launch direction ...

Подробнее
Номер записи: 35
12-04-2005 дата публикации

Temperature insensitive VCSEL

Номер: US0006879612B1
Автор: John Wasserbauer, WASSERBAUER JOHN
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A temperature insensitive vertical cavity laser includes an active region, having a plurality of quantum wells, formed between first and second mirrors. The gain of each of said quantum wells or groups of quantum wells operate quasi-independently at different temperatures such that stimulated emission is dominated by a different quantum well or group of quantum wells at different temperatures.

Подробнее
Номер записи: 36
12-07-2005 дата публикации

Method of self-aligning an oxide aperture with an annular intra-cavity contact in a long wavelength VCSEL

Номер: US0006916672B2
Автор: Leo M. F. Chirovsky, Ryan Likeke Naone, David Kisker, Stewart Feld, CHIROVSKY LEO M F, NAONE RYAN LIKEKE, KISKER DAVID, FELD STEWART, CHIROVSKY LEO M. F.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method of forming a vertical cavity surface emitting laser ( 100, 600, 900 ) includes process steps for self-aligning the p-type ohmic contact ( 118, 518, 932 ), an oxide current aperture ( 122, 926 a), and a central puck of re-phase material ( 560 a , 936 ) around the optical axis of the laser.

Подробнее
Номер записи: 37
17-08-2004 дата публикации

VCSEL monitoring using refracted ray coupling

Номер: US0006778585B2
Автор: Kevin Malone, MALONE KEVIN
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for monitoring the optical power output of a VCSEL uses refracted ray coupling to direct rays refracted out of an optical transmission medium, towards a photodetector. The photodetector is coupled to feedback circuitry and laser control circuitry capable of adjusting the VCSEL based on the monitored power output. A portion of the rays that enter the optical fiber are refracted out of the optical fiber by means of high-index materials and directed toward the photodetector by reflective surfaces situated around the coupling region in which the VCSEL is coupled to the optical fiber.

Подробнее
Номер записи: 38
31-05-2005 дата публикации

Antiguide single mode vertical cavity laser

Номер: US0006901099B1
Автор: John G. Wasserbauer, WASSERBAUER JOHN G, WASSERBAUER JOHN G.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A vertical cavity laser (VCL) including a first mirror formed adjacent a substrate, an optical cavity formed adjacent the first mirror, a second mirror formed adjacent the optical cavity, a first current and/or optical aperture formed within the cavity, within the mirror or at the surface of the mirror, and an antiguide for reducing, balancing, or reversing the index step created by the first current and/or optical aperture. The VCL may further include a second optical aperture for confining the optical mode to provide single mode operation.

Подробнее
Номер записи: 39
09-12-2003 дата публикации

High-speed optical sub-assembly utilizing ceramic substrate, direct coupling and laser welding

Номер: US0006659659B1
Автор: Kevin J. Malone, MALONE KEVIN J, MALONE KEVIN J.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optical subassembly (OSA) includes a ferrule, an optical fiber, a ceramic substrate, and a seal coupled to the ceramic substrate. A weld sleeve is used to fixably couple the ferrule to the seal ring, for which the weld sleeve may be laser welded to the ferrule and/or the seal ring. The OSA may be a transmitter OSA or a receiver OSA, and may be hermetically sealed.

Подробнее
Номер записи: 40
19-04-2005 дата публикации

Optical subassembly enclosure

Номер: US0006880986B2
Автор: Blake Mynatt, Dennis King, Jason Yorks, William Kit Dean, Mark Stiehl, MYNATT BLAKE, KING DENNIS, YORKS JASON, DEAN WILLIAM KIT, STIEHL MARK
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A sealing feature for a multiple-piece housing for optoelectronic devices. The housing provides EMI shielding and axial stain suppression for optical fibers coupled to optoelectronic devices retained within the housing. In an exemplary embodiment, the scaling feature includes a corrugated channel having a cross-sectional area that varies along the longitudinal direction of said channel and the channel retains a gasket having a substantially constant cross-sectional area. The corrugated channel, which receives the gasket, includes varying wide and narrow sections. The sealing feature provides for sufficient compression throughout the gasket and a tight, EMI-shielding seal formed between the pieces of the housing.

Подробнее
Номер записи: 41
01-03-2005 дата публикации

Hermetically sealed optical subassembly

Номер: US0006861641B1
Автор: Rich Adams, ADAMS RICH
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optical subassembly includes a high speed ceramic substrate having cavity containing an array of photodetectors, and a glass or silicon window for covering the cavity and forming a hermetic seal. A retainer is attached to the window for direct or indirect attachment to a fiber. The hermetic seal protects the device from moisture and other environmental conditions. The window has an index of refraction higher than air that effectively increases the optical pathlength sufficient while maintaining an acceptable coupling efficiency between the optoelectronic device and a fiber. This provides increased spacing within which to place and interconnect components within the cavity on the substrate. In alternate embodiments, the window is decoupled from direct contact with the retainer via a metal frame or ring. Decoupling the window from direct contact with the retainer helps prevent cracking of the window due to mismatches in the coefficients of thermal expansion between the window and the retainer ...

Подробнее
Номер записи: 42
09-01-2007 дата публикации

Optical interface unit

Номер: US0007160037B2
Автор: Michael Dudek, Michael Tartaglia, Carl Embry, Mark Stiehl, Timothy Bingaman, Steven Anderson, Dale Isaacson, DUDEK MICHAEL, TARTAGLIA MICHAEL, EMBRY CARL, STIEHL MARK, BINGAMAN TIMOTHY, ANDERSON STEVEN, ISAACSON DALE
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

In an exemplary embodiment of the present invention, an optical interface unit provides an interface between an optoelectronic device and industry standard MTP/MPO connectors. The optical interface unit axially aligns the core of a fiber with the optoelectronic device and interfaces that fiber to the standardized connector. In addition, the optical interface unit further provides a standardized interface for visible contact connection between the individual fiber stubs and the terminated fibers in the standardized connector. The optical interface unit therefore maximizes coupling from the optoelectronic device with the standardized connector.

Подробнее
Номер записи: 43
15-06-2004 дата публикации

Method of self-aligning an oxide aperture with an annular intra-cavity contact in a long wavelength VCSEL

Номер: US0006750071B2
Автор: Leo M. F. Chirovsky, Ryan Likeke Naone, David Kisker, Stewart Feld, CHIROVSKY LEO M F, NAONE RYAN LIKEKE, KISKER DAVID, FELD STEWART, CHIROVSKY LEO M. F.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method of forming a vertical cavity surface emitting laser (100, 600, 900) includes process steps for self-aligning the p-type ohmic contact (118, 518, 932), an oxide current aperture (122, 926a), and a central puck of re-phase material (560a, 936) around the optical axis of the laser.

Подробнее
Номер записи: 44
16-11-2004 дата публикации

Pluggable optical transceiver with pivoting release actuator

Номер: US0006819568B2
Автор: Chi Hung Cao, CAO CHI HUNG
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A pluggable optical transceiver having a pivotable actuator assembly for quickly and easily removing the transceiver from a receptacle cage assembly is provided. The actuator assembly includes a slide member, actuator means, and spring means. The rotation of the actuator causes the transceiver to become disengaged from the receptacle. In this manner, the transceiver is released and can be removed easily from the receptacle.

Подробнее
Номер записи: 45
19-07-2005 дата публикации

High speed detectors having integrated electrical components

Номер: US0006919609B2
Автор: John Hart Lindemann, Michael Thomas Dudek, David Galt, LINDEMANN JOHN HART, DUDEK MICHAEL THOMAS, GALT DAVID
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An opto-electronic device configured as a photodetector has a capacitor and/or resistor monolithically formed on a surface of the photodetector. The capacitor capacitively couples the AC ground of the photodetector to the bias terminal of the photodetector. The on chip capacitor design eliminates the inductance of external circuit traces between the power supply and an external capacitor. The resistor forces the AC return current of the photodetector through the AC ground in preference to the typical (DC bias terminal) path. Combinations of capacitors and resistors are particularly effective in reducing crosstalk among adjacent detectors in arrays.

Подробнее
Номер записи: 46
23-11-2004 дата публикации

High-speed laser array driver

Номер: US0006822987B2
Автор: Nelson Diaz, Michael Dudek, Carl Embry, DIAZ NELSON, DUDEK MICHAEL, EMBRY CARL
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for driving lasers. An example laser driving system includes a laser current controller for providing a modulation signal and a bias signal. The modulation signal and bias signal is used by a plurality of high-speed current drivers that accept the modulation signal and the bias signal and produce a plurality of laser drive signals. The example system also has a disable input that disconnects power from a high-speed current driver when the high-speed current driver is not in use. The exemplary system develops the modulation and bias signals by feeding back a signal developed from detection of laser light from one of the lasers driven by the system. The laser may be a data laser or a control laser that is modulated by a signal having a lower frequency than the data lasers. If a control laser is used then the photodetector circuit used for feedback can have a lower frequency response because of the lower frequency of the control laser signal. The photodetector system ...

Подробнее
Номер записи: 47
22-06-2004 дата публикации

Photodetector with isolation implant region for reduced device capacitance and increased bandwidth

Номер: US0006753214B1
Автор: David Brinkmann, John Lindemann, Jeffrey Scott, BRINKMANN DAVID, LINDEMANN JOHN, SCOTT JEFFREY
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A PIN photodetector includes reduced parasitic capacitance and is suitable for high-speed applications. Metal interconnect leads are coupled to the photodetector and extend over electrically insulating regions which reduce or eliminate parasitic capacitance. The electrically insulating regions may be formed by a deep proton implantation process which introduces impurities into the N-type layer, P-type layer and intrinsic layer in portions of the inactive area according to one embodiment. In another embodiment, the electrically insulating regions may be formed by removing parts of the film stack that includes N-type layer, P-type layer and intrinsic layer, from portions of the inactive area, introducing impurities and optionally adding a dielectric material. The PIN photodetector may take on the shape of a mesa to provide contact to each of the upper and lower electrodes.

Подробнее
Номер записи: 48
18-05-2004 дата публикации

VCSEL array optical subassembly module with alignment mechanism

Номер: US0006736553B1
Автор: Mark Stiehl, Michael L. Tartaglia, Carl Embry, Michael Dudek, Timothy Bingaman, Allen Tracy, Mark Eginton, Dale Isaacson, Craig Mynatt, STIEHL MARK, TARTAGLIA MICHAEL L, EMBRY CARL, DUDEK MICHAEL, BINGAMAN TIMOTHY, TRACY ALLEN, EGINTON MARK, ISAACSON DALE, MYNATT CRAIG, TARTAGLIA MICHAEL L.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for coupling light from an array of optoelectronic devices to a corresponding array of fibers contained in a fiber optic ferrule is disclosed. The fibers may be single-mode or multi-mode optical fibers. The method includes fixing the fiber optic ferrule to the optical subassembly (OSA) base upon which the array of optoelectronic devices will be affixed, aligning the array of optoelectronic devices to the corresponding array of fibers, then securing the array of optoelectronic devices to the OSA base. In one embodiment, the module includes an optical subassembly module housing a linear array of 1300 nm VCSELs or photodetectors, spaced apart at a 250 micron pitch to correspond to the spacing of optical fibers in a conventional MT ferrule. The array of optoelectronic devices is mounted on a substrate assembly that includes a weldable surface and one or more photodetectors for automatic power control. After the components are aligned, the substrate assembly is affixed ...

Подробнее
Номер записи: 49
15-02-2011 дата публикации

Burst mode receiver for passive optical network

Номер: US0007889815B2
Автор: Reza Miremadi, Sean Zargari, MIREMADI REZA, ZARGARI SEAN
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A receiver assembly for use in an optical telecommunications network is provided that automatically generates a reference level for the incoming signal burst based on its preamble without the need to pre-process the entire signal burst. The entire signal burst is fed directly from the TIA into the input of the limiting amplifier. A differential amplifier, tapped from the data and data bar outputs of the limiting amplifier, samples the signal stream to capture the preamble portion of each signal burst. The preamble portion of the signal burst is then passed, post amplification, into a sample and hold circuit. The sample and hold circuit samples the amplitude of this preamble portion of the signal and then holds the sampled level for use as a reference level for the processing of following payload signal.

Подробнее
Номер записи: 50
28-03-2006 дата публикации

Long wavelength vertical cavity surface emitting laser

Номер: US0007020172B2
Автор: Ryan Likeke Naone, Andrew W. Jackson, Leo M. F. Chirovsky, NAONE RYAN LIKEKE, JACKSON ANDREW W, CHIROVSKY LEO M F, JACKSON ANDREW W., CHIROVSKY LEO M. F.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

Selectively oxidized vertical cavity lasers emitting at about 1290 nm using InGaAsN quantum wells that operate continuous wave below, at and above room temperature are reported. The lasers employ a semi-insulating GaAs substrate for reduced capacitance, high quality, low resistivity AlGaAs DBR mirror structures, and a strained active region based on InGaAsN. In addition, the design of the VCSEL reduces free carrier absorption of 1.3 mum light in the p-type materials by placing relatively higher p-type dopant concentrations near standing wave nulls.

Подробнее
Номер записи: 51
20-05-2003 дата публикации

VCSEL power monitoring system using plastic encapsulation techniques

Номер: US0006567435B1
Автор: Jeffrey W. Scott, Dale Isaacson, Tehseen Abidi, SCOTT JEFFREY W, ISAACSON DALE, ABIDI TEHSEEN, SCOTT JEFFREY W.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A plastic encapsulated VCSEL and power monitoring system wherein the VCSEL and photodetector are encapsulated in an optoelectronic plastic molding material. A tilted window, with a partially reflective coating on one side, is attached to the top of the plastic molding material using an epoxy with a refractive index that substantially matches the molding material. The plastic encapsulated VCSEL and photodetector may be manufactured at low cost using standard molding techniques. The high optical quality of the tilted window and partially reflective coating provide an excellent surface to reflect a portion of the optical beam back to the photodetector. Also, the tilted window substantially reduces inconsistent power monitoring due to beam divergence and walk-off.

Подробнее
Номер записи: 52
14-12-2004 дата публикации

Method and apparatus for performing whole wafer burn-in

Номер: US0006830940B1
Автор: John Wasserbauer, Stewart A. Feld, WASSERBAUER JOHN, FELD STEWART A, FELD STEWART A.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A method and apparatus for burning in a semiconductor wafer having a plurality of active devices utilizes temporary conductive interconnect layers to separately couple at least a portion of the anodes of the active devices together as well as at least a portion of the cathodes of the devices together. A simplified probed pad, having a reduced number of contacts may then be utilized to apply a substantially constant voltage or current to the devices. The temporary conductive interconnect layer may be patterned to include device level resistors or array level resistors that may be used to mitigate the effects of short circuits or open circuits on the processing of the devices.

Подробнее
Номер записи: 53
20-02-2007 дата публикации

Self-adjusting data transmitter

Номер: US0007181146B1
Автор: Jason Yorks, YORKS JASON
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

A self-adjusting data transmitter driver can be used for transmission of analog or digital data signal over any suitable communication channel, such as, for example, optical, electrical, wireless and satellite. The optical transmitter driver may be used to drive a single laser as well as an array of lasers. An optical transmitter driver including a laser diode driver can be used to provide modulation and bias currents to drive a laser diode in an optical communication system. A high speed photodiode is used to monitor high frequency characteristics of the optical data signal while one or more photodiodes are used to detect source parameters of the optical data signal. To compute the feedback parameters, parameters including BER, data-eye, discrete optical data integrity parameters and discrete optical parameters are determined using the feedback detectors. The feedback parameters are used to adjust the optical quality of the laser output towards optimization.

Подробнее
Номер записи: 54
30-09-2003 дата публикации

Subassembly for passively aligning an optical fiber with a VCSEL and method of manufacturing the same

Номер: US0006626585B1
Автор: Kevin Malone, MALONE KEVIN
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optical subassembly configured to passively align an optical fiber with an optical device. The optical subassembly including a submount having a guide hole with a first tapered portion for guiding an optical fiber into a second portion of substantially constant cross section, wherein the second portion aligns the optical fiber with the optical device.

Подробнее
Номер записи: 55
09-11-2004 дата публикации

Apparatus and methods for using fiber optic arrays in optical communication systems

Номер: US0006816642B1
Автор: Robert C. Mayer, Michael D. Wilcox, MAYER ROBERT C, WILCOX MICHAEL D, MAYER ROBERT C., WILCOX MICHAEL D.
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

System and optical communication that may be employed to couple together fiber optic arrays of two or more optical communication modules using parallel fiber optic connectors and physically distinct and signal-independent optical communication paths. The disclosed systems and methods may be employed to provide separate single-independent communication paths having signal transport characteristics that meet standards required for single fiber single point-to-single point applications.

Подробнее
Номер записи: 56
12-04-2005 дата публикации

Method and apparatus for hermetic sealing of assembled die

Номер: US0006879038B2
Автор: William Kit Dean, DEAN WILLIAM KIT
Принадлежит: Optical Communication Products, Inc., OPTICAL COMM PRODUCTS INC, OPTICAL COMMUNICATION PRODUCTS, INC.

An optically transparent, hermetic coating is locally formed on die and other components already assembled in an existing nonhermetic structure. The local hermetic sealing of an OSA includes providing an OSA having at least one exposed optoelectronic component, and providing a paralene source. The method provides for positioning a mask between the paralene source and the OSA, the mask including an opening aligned with a first region of the OSA. The first region includes at least one of the exposed optoelectronic components. The paralene source is then caused to generate paralene such that a permanent paralene coating is deposited through the opening and on the first region of the OSA. The permanent paralene coating essentially hermetically seals the first region. The permanent paralene coating is chosen to be transparent to the wavelength of light emitted and/or used in the optical sub-assembly.

Подробнее
Номер записи: 57