Title:
METHOD AND APPARATUS FOR LASER FREQUENCY CONTROL
Document Type and Number:
WIPO Patent Application WO/2021/008540
Kind Code:
A1
Abstract:
The disclosed systems, apparatuses and methods are directed to controlling a difference between a first center frequency of a first optical subcarrier and a second center frequency of a second optical subcarrier of an optical super-channel signal in an optical network. The method comprises modulating the first optical subcarrier at a first optical side component frequency with a first side modulation frequency and modulating the second optical subcarrier at a second optical side component frequency with a second side modulation frequency. The method further comprises detecting a radio-frequency (RF) power at a modulated beat frequency tone in the modified optical signal.
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Inventors:
JIANG ZHIPING (CA)
TANG XUEFENG (CA)
SUN HAITAO (CA)
TANG XUEFENG (CA)
SUN HAITAO (CA)
Application Number:
PCT/CN2020/102004
Publication Date:
January 21, 2021
Filing Date:
July 15, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J14/02; G02F1/29
Domestic Patent References:
| WO2015022034A1 | 2015-02-19 | |||
| WO2019028702A1 | 2019-02-14 | |||
| WO2015022034A1 | 2015-02-19 | |||
| WO2018164035A1 | 2018-09-13 |
Foreign References:
| US20120251101A1 | 2012-10-04 | |||
| CN109088673A | 2018-12-25 | |||
| US20040227942A1 | 2004-11-18 |
Other References:
WONG, N.C. ET AL.: "Optical Parameter Division", PROC. OF THE FREQUENCY CONTROL SYMPOSIUM. HERSHEY, 27 May 1992 (1992-05-27)
See also references of EP 3850771A4
See also references of EP 3850771A4
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