公开(公告)号：US20240121008A1

公开(公告)日：2024-04-11

申请号：US18491572

申请日：2023-10-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Rixiang CAO ,  Yu XIONG ,  Zelin WANG ,  Zhe YU

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

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

Abstract: This application provides example receiver optical sub-assemblies, example bi-directional optical sub-assemblies, and example optical network devices. One example 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, where 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：US20220158740A1

公开(公告)日：2022-05-19

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

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.