公开(公告)号：EP3591862A1

公开(公告)日：2020-01-08

申请号：EP17905253.5

申请日：2017-04-11

申请人： Huawei Technologies Co., Ltd.

发明人： DENG, Binlin ,  LI, Yang ,  YAN, Hui ,  WANG, Yuanwu

IPC分类号： H04B10/564

摘要： This application provides a sending device, a receiving device, an optical transmission system, and an optical power control method, and relates to the field of optical communications technologies. The sending device includes: a multiplexing unit and an optical power adjustment unit; the multiplexing unit is configured to send at least two communication optical waves to a fiber channel, and is further configured to send or receive at least two detection optical waves through the fiber channel; and the optical power adjustment unit is configured to: obtain a power control instruction, where the power control instruction is generated according to power change information between the at least two detection optical waves, and perform optical power amplification and/or attenuation on at least one communication optical wave in the at least two communication optical waves according to the power control instruction. In this application, impact caused by an SRS effect on an optical power of the communication optical wave can be rapidly detected by using the power change information between the at least two detection optical waves, so that the optical power adjustment unit dynamically adjusts the optical power of the communication optical wave according to the power control instruction to reduce or eliminate the impact caused by the SRS effect on the optical power.