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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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Применить Всего найдено 5. Отображено 5.
23-05-2023 дата публикации

SOA gain automatic control method and system for optical module

Номер: CN116155387A
Автор: ZHANG WEN, LUO CHUANNENG, LI ZIWEN, YIN XINYI, CAI QIUYUAN
Принадлежит:

A method for automatically controlling gain of a semiconductor optical amplifier (SOA) of an optical module comprises the following steps: initially electrifying or resetting the optical module, and configuring the SOA to work in a minimum gain mode; the optical module receives a far-end optical signal, calculates the input optical power through an internal calibration algorithm, judges whether the input optical power is within the specification range of the optical power received by the optical module, and processes the SOA according to a first preset rule based on different judgment results; and when it is judged that the input optical power is within the specification range of the module receiving optical power, continuing to judge whether the input optical power is within the range corresponding to the current gain of the SOA, and processing the gain of the SOA according to a second preset rule based on different judgment results. According to the invention, the module and end-to-end ...

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Номер записи: 1
04-07-2023 дата публикации

Optical module

Номер: CN116388877A
Автор: ZHANG TAO, LUO CHUANNENG, LI ZIWEN, YU TIANCHAO
Принадлежит:

The invention relates to an optical module, which comprises a power supply circuit, an electrical interface circuit, a driving integrated circuit, a microcontroller, a 56G optical detector and a 56G laser, the power supply circuit is used for supplying power to the whole optical module, the 56G optical detector and the 56G laser are respectively connected with the driving integrated circuit, the driving integrated circuit is connected with the electrical interface circuit, and the microcontroller is connected with the driving integrated circuit. And the microcontroller is connected with the driving integrated circuit. And the microcontroller is used for controlling the operation of the driving integrated circuit to realize digital diagnosis and automatic optical power control. The optical detector comprises a PD and a TIA, the optical detector is used for receiving an optical signal and outputting a high-speed voltage signal after being amplified by the PD and the TIA, the TIA integrated ...

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Номер записи: 2
05-05-2023 дата публикации

MZM modulator-based working point automatic locking method and optical module

Номер: CN116073902A
Автор: ZHANG SHENG, LI ZIWEN, CHEN JIAN, LUO CHUANNENG, YANG LANLAN
Принадлежит:

The invention discloses a working point automatic locking method based on an MZM modulator and an optical module. The method comprises the steps that after the module is powered on, a default output amplitude set value A1 of a signal processing circuit and MZPhaseBias current MZPhaseBias are loaded; after entering a main cycle, increasing an output amplitude setting value of the signal processing circuit to A1 + delta, and reading a sampling value B1 of an MPD (Mach-Zehnder Modulator) used for monitoring the size of output light at the rear end of the MZM modulator; restoring an output amplitude setting value of the signal processing circuit to A1, and reading a sampling value B2 of an MPD (Mach-Zehnder Modulator) used for monitoring the size of output light at the rear end of the MZM modulator; judging whether B1-B2 are in a range of-a to a or not; if B1-B2 is larger than or equal to-a and smaller than or equal to a, the MZPhaseBias keeps the value of the last time unchanged, and at the ...

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Номер записи: 3
23-06-2023 дата публикации

Differential drive EML optical assembly

Номер: CN116318416A
Автор: ZHANG WEN, LUO CHUANNENG, LI ZIWEN, QU GUANYA
Принадлежит:

The invention belongs to the technical field of optical communication, and particularly provides a differential drive EML optical assembly, which comprises an isolation capacitor C, a matching resistor R and a carrier, and is characterized in that the carrier is provided with an electric absorption modulator EAM and a DFB laser; one end of the matching resistor R is electrically connected with the electric absorption modulator EAM, and the other end of the matching resistor R is electrically connected with the carrier; the two ends of the isolation capacitor C are electrically connected with the positive electrode and the negative electrode of the DFB laser respectively. According to the high-speed optical module based on the differential driving EML optical assembly, differential driving can be carried out by directly adopting a CDR or a DSP, an extra driver is not needed, especially a multi-channel scheme is not needed, and the power consumption and the cost of the optical module can ...

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Номер записи: 4
06-06-2023 дата публикации

Production welding and dismounting method of double-layer PCBA (Printed Circuit Board Assembly) optical module and integrated device

Номер: CN116213859A
Автор: YANG LANLAN, LUO CHUANNENG, LI ZIWEN, ZHANG CHENG, CHEN JIAN, ZHANG SHENG, XIAO YUXIN
Принадлежит:

The invention relates to the technical field of optical communication, and provides a double-layer PCBA (Printed Circuit Board Assembly) optical module production welding and dismounting integrated device which comprises a base provided with a placing groove for placing a main board PCBA; the protective plate is used for protecting the auxiliary board PCBA inside, and the protective plate is provided with a notch for exposing a bonding pad on the main board PCBA. The invention further provides a production welding, dismounting and mounting method of the double-layer PCBA optical module. According to the invention, PCBA preset soldering tin, welding of the upper and lower double-layer FPCs of the laser and the PCBA, welding of the FPC of the detector and the PCBA, dismounting of the double-layer FPCs of the laser and the PCBA, and dismounting of the FPC of the detector and the PCBA are integrated, so that complete protection of the auxiliary board PCBA is realized. Five functions are integrated ...

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Номер записи: 5