公开(公告)号：US20200322061A1

公开(公告)日：2020-10-08

申请号：US16909124

申请日：2020-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shu Li ,  Rixiang Cao ,  Zelin Wang ,  Sulin Yang

IPC: H04B10/66 ,  H04B10/27 ,  H04Q11/00 ,  H04B10/25 ,  H04J14/02

Abstract: A receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, where the receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and where a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can.

公开(公告)号：US11848710B2

公开(公告)日：2023-12-19

申请号：US17557450

申请日：2021-12-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rixiang Cao ,  Yu Xiong ,  Zelin Wang ,  Zhe Yu

IPC: H04B10/06 ,  H04B10/40 ,  H04B10/69 ,  H03F3/08 ,  H04B10/67

CPC classification number: H04B10/67 ,  H03F3/08 ,  H04B10/40 ,  H04B10/691 ,  H04B10/697

Abstract: This application provides a receiver optical sub-assembly, a bi-directional optical sub-assembly, and an optical network device to improve anti-electromagnetic crosstalk performance of the receiver optical sub-assembly. The receiver optical sub-assembly includes: a photodiode, a trans-impedance amplifier, and a first filter component. The photodiode is configured to convert an optical signal into an electrical signal, a positive electrode of the photodiode is connected to an input terminal of the trans-impedance amplifier, and a negative electrode of the photodiode is configured to connect to a power supply. The trans-impedance amplifier is configured to amplify the electrical signal output by the photodiode, a power terminal of the trans-impedance amplifier is configured to connect to a power supply, and a first ground terminal of the trans-impedance amplifier is configured to connect to an external ground.

公开(公告)号：US20250038862A1

公开(公告)日：2025-01-30

申请号：US18914234

申请日：2024-10-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rixiang Cao ,  Yuquan Yu ,  Zhenhua Zhang

IPC: H04B10/69 ,  H03F3/45

Abstract: This application relates to an optical receiver. The optical receiver includes a photodetector and a trans-impedance amplifier that includes a first differential branch circuit, a second differential branch circuit, and a differential amplifier. The first differential branch circuit includes a first capacitor and a first trans-impedance amplifying unit, where an input end of the first capacitor receives an input signal from a power supply end of the photodetector, and an output end of the first capacitor is coupled to an input end of the first trans-impedance amplifying unit. The first differential branch circuit is configured to: amplify the input signal and output a reference signal. The second differential branch circuit is configured to amplify an electrical signal from the photodetector. Signal physical parameter values of the reference signal and an interference signal included in an amplified electrical signal are the same or similar.

公开(公告)号：US11184088B2

公开(公告)日：2021-11-23

申请号：US16909124

申请日：2020-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shu Li ,  Rixiang Cao ,  Zelin Wang ,  Sulin Yang

IPC: H04B10/27 ,  H04B10/66 ,  H04B10/25 ,  H04J14/02 ,  H04Q11/00

Abstract: A receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, where the receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and where a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can.

公开(公告)号：US11916600B2

公开(公告)日：2024-02-27

申请号：US17506266

申请日：2021-10-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shu Li ,  Rixiang Cao ,  Zelin Wang ,  Sulin Yang

IPC: H04B10/27 ,  H04B10/66 ,  H04B10/25 ,  H04Q11/00 ,  H04J14/02

CPC classification number: H04B10/66 ,  H04B10/2589 ,  H04B10/27 ,  H04J14/02 ,  H04Q11/0067

Abstract: A receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, where the receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and where a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can.

公开(公告)号：US11799561B2

公开(公告)日：2023-10-24

申请号：US17506266

申请日：2021-10-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shu Li ,  Rixiang Cao ,  Zelin Wang ,  Sulin Yang

IPC: H04B10/27 ,  H04B10/66 ,  H04B10/25 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04B10/66 ,  H04B10/2589 ,  H04B10/27 ,  H04J14/02 ,  H04Q11/0067

Abstract: A receiver optical sub-assembly, a combo bi-directional optical sub-assembly, a combo optical module, an optical line terminal, and a passive optical network system, where the receiver optical sub-assembly includes a first transistor-outline can, where a light incident hole is disposed on the first transistor-outline can, and where a first demultiplexer, a first optical receiver, a second optical receiver, and an optical lens combination are packaged in the first transistor-outline can.