公开(公告)号：US20230341266A1

公开(公告)日：2023-10-26

申请号：US18344303

申请日：2023-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cheewei LEE ,  Chao PAN ,  Stevanus DARMAWAN ,  Shaowu WANG ,  Qian WANG ,  Huaqiang QIN

IPC: G01J3/45 ,  G01J3/02 ,  G02B27/10

CPC classification number: G01J3/45 ,  G01J3/0229 ,  G02B27/1006

Abstract: A optical chip includes: an optical splitter, configured to receive a first electromagnetic wave signal, and divide the first electromagnetic wave signal into two electromagnetic wave signals for output; and a first interferometer and a second interferometer, where the optical splitter, the first interferometer, and the second interferometer are sequentially coupled, and the first interferometer and the second interferometer are configured to receive one of the two electromagnetic wave signals, so that the one electromagnetic wave signal is interfered twice, to output a plurality of second electromagnetic wave signals. The other one of the two electromagnetic wave signals is output as a third electromagnetic wave signal, and the second electromagnetic wave signal and the third electromagnetic wave signal may be used to obtain wavelength information of the first electromagnetic wave signal through optical-electrical conversion. A wavelength measurement system is further provided.

公开(公告)号：US20210067244A1

公开(公告)日：2021-03-04

申请号：US17097519

申请日：2020-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenhua DONG ,  Chao PAN ,  Zhiyong FENG ,  Xu ZHOU

IPC: H04B10/071 ,  H04B10/40 ,  H04B10/61 ,  H04B10/25

Abstract: This application discloses an optical signal transceiver apparatus, and belongs to the communications field. The apparatus includes: an optical signal generation module, configured to generate a to-be-sent optical signal and a local oscillator optical signal, where the to-be-sent optical signal includes an OTDR signal; an optical combining/splitting module, configured to: receive a to-be-processed optical signal from an optical fiber; and input the to-be-processed optical signal into an coherent receiving module; the coherent receiving module, configured to coherently receive the local oscillator optical signal and the to-be-processed optical signal to obtain a to-be-processed electrical signal; a signal processing module, configured to: obtain a first digital signal and a second digital signal from the to-be-processed electrical signal based on a signal frequency; process the first digital signal to obtain a communications code stream; and process the second digital signal to obtain information used to reflect a feature of the optical fiber.