公开(公告)号：US20180331776A1

公开(公告)日：2018-11-15

申请号：US16023632

申请日：2018-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chuanbiao WANG ,  Zhenwei CUI ,  Xiaojun ZENG ,  Xi HUANG

IPC: H04J14/02 ,  H04B10/50 ,  H04B10/25 ,  H04B10/516

CPC classification number: H04J14/02 ,  H04B10/25 ,  H04B10/503 ,  H04B10/5161

Abstract: Embodiments of the present invention disclose an optical signal transmission method, apparatus, and system. The apparatus includes a short wavelength division multiplexer, a signal processor, a first linear driver, a second linear driver, a first transmitter, and a second transmitter. The signal processor is configured to perform bit rate allocation and code pattern modulation on a received binary signal, to obtain a first electrical signal to be sent to the first linear driver and a second electrical signal to be sent to the second linear driver. It can be learnt that, by implementing the embodiments of the present invention, a quantity of wavelengths transmitted in a multimode optical fiber can be reduced by performing bit rate allocation on a binary signal, thereby reducing interference between channels in the optical fiber for optical signal transmission.

公开(公告)号：US20230006418A1

公开(公告)日：2023-01-05

申请号：US17899925

申请日：2022-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liqiang YU ,  Zhenwei CUI ,  Wei CHEN ,  Yanfeng JIANG ,  Junzhe LIU

IPC: H01S5/042 ,  H01S5/40 ,  G01S17/10

Abstract: A depth obtaining component includes a laser driver array and a laser array. The laser array includes a plurality of lasers. The laser driver array includes one or more control units, and each control unit is configured to control selection of one or more lasers in the laser array. The one or more control units are disposed in a charge loop of the laser driver array. A laser corresponding to the control unit can be flexibly selected based on a first switch module and a capacitive module in the control unit. In this way, scanning laser emission of the laser array can be implemented based on the laser drive circuit, no scanning device such as a micro electro mechanical systems mirror needs to be additionally disposed, and circuit support can be provided for implementing a small-sized, power-efficient, and cost-effective optical transmit end.