公开(公告)号：US11119003B2

公开(公告)日：2021-09-14

申请号：US16816676

申请日：2020-03-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Binlin Deng ,  Lei Wang

IPC: H04J14/02 ,  G01M11/00 ,  G02B6/42 ,  H04B10/564 ,  H04B10/66 ,  H04B10/25

Abstract: A calibration apparatus in a wavelength division multiplexing system includes a sending module configured to send a first detection signal to a first multiplexing device; a receiving module configured to receive the first detection signal that passes through the first multiplexing device, and receive a second detection signal that passes through the first multiplexing device and a second multiplexing device; and a processing module configured to adjust a center frequency of the first detection signal, so that an adjusted center frequency of the first detection signal is aligned with a center frequency of the first multiplexing device, and adjust a center frequency of the second detection signal and the center frequency of the first multiplexing device, so that the center frequency of the first multiplexing device is aligned with the center frequency of the second detection signal.

公开(公告)号：US20200209108A1

公开(公告)日：2020-07-02

申请号：US16816676

申请日：2020-03-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Binlin Deng ,  Lei Wang

IPC: G01M11/00 ,  H04J14/02 ,  H04B10/564 ,  H04B10/66 ,  G02B6/42

Abstract: This application provides a calibration apparatus and method, and a wavelength division multiplexing system. The calibration apparatus includes: a sending module, configured to send a first detection signal to a first multiplexing device; a receiving module, configured to receive the first detection signal that passes through the first multiplexing device, and receive a second detection signal that passes through the first multiplexing device and a second multiplexing device; and a processing module, configured to adjust a center frequency of the first detection signal, so that an adjusted center frequency of the first detection signal is aligned with a center frequency of the first multiplexing device, and adjust a center frequency of the second detection signal and the center frequency of the first multiplexing device, so that the center frequency of the first multiplexing device is aligned with the center frequency of the second detection signal.

公开(公告)号：US11323199B2

公开(公告)日：2022-05-03

申请号：US16589547

申请日：2019-10-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Binlin Deng ,  Yang Li ,  Hui Yan ,  Yuanwu Wang

IPC: H04J14/02 ,  H04B10/564

Abstract: This application provides a sending device, a receiving device, an optical transmission system, and an optical power control method. 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. 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. The optical power adjustment unit is further configured to 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.