Title:
OPTICAL SIGNAL CONTROL METHOD AND DEVICE, OPTICAL TRANSMISSION NODE, AND OPTICAL TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/042378
Kind Code:
A1
Abstract:
The present application relates to the field of optical communications. Disclosed are an optical signal control method and device, an optical transmission node, and an optical transmission system. The device comprises: a light source configured to output a first optical signal; an optical switch module having a first input end, a second input end, and an output end, the first input end being configured to receive the first optical signal, the second input end being configured to receive an external second optical signal, and the output end being configured to output a third optical signal; and a detection module configured to detect that a power change of the second optical signal in at least one wavelength channel is greater than a preset power change threshold. The optical switch module is configured to adjust an on/off state of at least one wavelength channel in the received first optical signal and second optical signal after the detection module detects that the power change in the at least one wavelength channel is greater than the power change threshold, so as to obtain the third optical signal by combing the adjusted first optical signal and the adjusted second optical signal. The present application can reduce performance degradation of wavelength channels.
Inventors:
LUO JUN (CN)
FENG ZHIYONG (CN)
ZHONG JIAN (CN)
FENG ZHIYONG (CN)
ZHONG JIAN (CN)
Application Number:
PCT/CN2021/113099
Publication Date:
March 03, 2022
Filing Date:
August 17, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J14/02
Domestic Patent References:
| WO2018187930A1 | 2018-10-18 |
Foreign References:
| CN1859061A | 2006-11-08 | |||
| CN110380809A | 2019-10-25 | |||
| US20060221435A1 | 2006-10-05 | |||
| US20180069627A1 | 2018-03-08 | |||
| CN202010901207A | 2020-08-31 |
Other References:
See also references of EP 4199388A4
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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