公开(公告)号：US20210320742A1

公开(公告)日：2021-10-14

申请号：US17357468

申请日：2021-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Jia ,  Liangjia Zong ,  Bing Zou ,  Lei Mao ,  Chao Pan

IPC: H04J14/02 ,  H04B10/61 ,  H04B10/2569 ,  H04B10/079

Abstract: A polarization-dependent loss (PDL) determining method includes obtaining two groups of optical powers within first duration, selecting at least one group of target optical powers that satisfy a same power constraint from the two groups of optical powers, where each group of target optical powers includes a first target power and a second target power from the two groups of optical powers, and determining a PDL of the optical device based on the at least one group of target optical powers.