公开(公告)号：US20230084074A1

公开(公告)日：2023-03-16

申请号：US17990331

申请日：2022-11-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Guo ,  Kui Ouyang ,  Minghui Liu ,  Shiyi Cao

IPC: H04B10/564 ,  H04B10/294 ,  H04B10/291

Abstract: A filter includes a first filter component coupled to a second filter component. The first filter component is configured to receive an optical signal, and filter the optical signal based on a first power difference of signals transmitted on a plurality of frequency bands in the optical signal, where the first power difference includes a difference caused by a first doped optical fiber. The second filter component is loaded with a first driving electrical signal used to control a frequency response of the second filter component. The second filter component is configured to filter, using the frequency response based on a second power difference of the signals transmitted on the plurality of frequency bands, an optical signal obtained after the filtering by the first filter component.

公开(公告)号：US12034486B2

公开(公告)日：2024-07-09

申请号：US17990331

申请日：2022-11-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiang Guo ,  Kui Ouyang ,  Minghui Liu ,  Shiyi Cao

IPC: H04B10/564 ,  H04B10/291 ,  H04B10/294

CPC classification number: H04B10/564 ,  H04B10/2916 ,  H04B10/2941

Abstract: A filter includes a first filter component coupled to a second filter component. The first filter component is configured to receive an optical signal, and filter the optical signal based on a first power difference of signals transmitted on a plurality of frequency bands in the optical signal, where the first power difference includes a difference caused by a first doped optical fiber. The second filter component is loaded with a first driving electrical signal used to control a frequency response of the second filter component. The second filter component is configured to filter, using the frequency response based on a second power difference of the signals transmitted on the plurality of frequency bands, an optical signal obtained after the filtering by the first filter component.