公开(公告)号：US11128384B2

公开(公告)日：2021-09-21

申请号：US17014407

申请日：2020-09-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanwu Wang ,  Zhiwen Chang ,  Guodong You ,  Zhenqing Zhao ,  Fei Chen

IPC: H04B10/67 ,  H01S3/067 ,  H01S3/10 ,  H01S3/23 ,  H04B10/25 ,  H04J14/02

Abstract: Example fiber amplifiers and gain adjustment methods for the fiber amplifiers are described. One example fiber amplifier includes a first power amplifier, a wavelength level adjuster, and a controller, where the first power amplifier and the wavelength level adjuster are sequentially connected. The controller includes a first input end and a control output end. The first input end is configured to receive an input optical signal of the fiber amplifier, and the control output end is configured to output a first amplification control signal to the first power amplifier, and output an adjustment control signal to the wavelength level adjuster. The wavelength level adjuster is configured to perform power adjustment on each wavelength based on the adjustment control signal.

公开(公告)号：US20240079842A1

公开(公告)日：2024-03-07

申请号：US18502871

申请日：2023-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hangting Hu ,  Zhiwen Chang ,  Guodong You

IPC: H01S3/10 ,  H01S3/094

CPC classification number: H01S3/1001 ,  H01S3/094003 ,  H01S3/10023 ,  H01S3/06716

Abstract: An optical amplifier includes a pump light source, a coupler, a gain medium, and a gain flattening filter. A gain curve of the optical amplifier is symmetric relative to a target gain curve. Distortion states of any two symmetric gain curves are opposite. The pump light source is configured to provide pump light. The coupler is configured to couple the pump light to the gain medium. The gain medium is configured to amplify, based on the pump light, signal light input to the optical amplifier. The gain flattening filter is configured to filter the amplified signal light, and output the filtered signal light.

公开(公告)号：US11671179B2

公开(公告)日：2023-06-06

申请号：US17407479

申请日：2021-08-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanwu Wang ,  Zhiwen Chang ,  Guodong You ,  Zhenqing Zhao ,  Fei Chen

IPC: H04B10/67 ,  H01S3/067 ,  H01S3/10 ,  H01S3/23 ,  H04B10/25 ,  H04J14/02

CPC classification number: H04B10/673 ,  H01S3/06754 ,  H01S3/10069 ,  H01S3/2316 ,  H04B10/25 ,  H04J14/0221

Abstract: Example fiber amplifiers and gain adjustment methods for the fiber amplifiers are described. One example fiber amplifier includes a first power amplifier, a wavelength level adjuster, and a controller, where the first power amplifier is connected to the wavelength level adjuster. The controller includes a first input end and a control output end. The first input end is configured to receive an input optical signal, and the control output end is configured to output a first amplification control signal to the first power amplifier, and output an adjustment control signal to the wavelength level adjuster. The wavelength level adjuster is configured to perform power adjustment on each wavelength in a separate manner based on the adjustment control signal.