公开(公告)号：US20230318733A1

公开(公告)日：2023-10-05

申请号：US18332130

申请日：2023-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qiang GUO ,  Rui ZHOU ,  Zhiqun YANG ,  Tao XU ,  Yaping LIU ,  Lin ZHANG

IPC: H04J14/04 ,  H04B10/293 ,  H01S3/10 ,  H01S3/067 ,  H01S3/16 ,  H01S3/094

CPC classification number: H04J14/04 ,  H04B10/2939 ,  H04B10/2931 ,  H01S3/10007 ,  H01S3/06758 ,  H01S3/1608 ,  H01S3/094011

Abstract: Embodiments of an optical amplification apparatus are disclosed which include a first optical amplifier, a second optical amplifier, and a mode exchanger. The first optical amplifier is connected to an input port of the mode exchanger, and the second optical amplifier is connected to an output port of the mode exchanger. The first optical amplifier is configured to amplify optical signals carried in a plurality of transmission modes of a few-mode fiber, the plurality of transmission modes of the few-mode fiber may be grouped into N groups, each group includes two transmission modes, and N is a positive integer greater than or equal to 1. The mode exchanger is configured to exchange the two transmission modes carrying optical signals in each group. The second optical amplifier is configured to amplify the optical signals that are carried in the two transmission modes in each group and whose modes are exchanged.