Title:
METHOD, DEVICE AND SYSTEM FOR DYNAMICALLY CONTROLLING GAIN OF RAMAN OPTICAL FIBER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2020/048052
Kind Code:
A1
Abstract:
A method, device and system for dynamically controlling a gain of a Raman optical fiber amplifier. The method comprises: determining whether a target gain falls within a gain mask range; if the target gain falls within the gain mask range, directly locking a gain to the target gain; and if the target gain falls outside the gain mask range, locking the gain to a corresponding maximum gain in the gain mask range, and gradually increasing the locked gain according to a preset first step length until the target gain is reached or until at least one pump laser reaches a maximum output power. The invention enables an optical fiber amplifier to respond quickly to a change in an input optical signal, ensures gain stability, and ensures that no power overshoot or undershoot occurs in the non-switched optical channels in an optical path. Moreover, the invention minimizes an amount of time required to complete switching between gains.
Inventors:
ZHANG CUIHONG (CN)
FU CHENGPENG (CN)
TAO JINTAO (CN)
ZHANG HAO (CN)
CHENG LIJING (CN)
FU CHENGPENG (CN)
TAO JINTAO (CN)
ZHANG HAO (CN)
CHENG LIJING (CN)
Application Number:
PCT/CN2018/123701
Publication Date:
March 12, 2020
Filing Date:
December 26, 2018
Export Citation:
Assignee:
ACCELINK TECH CO LTD (CN)
International Classes:
H01S3/067; H01S3/30; H01S3/0941
Foreign References:
| US20020171917A1 | 2002-11-21 | |||
| CN107437721A | 2017-12-05 | |||
| CN108885382A | 2018-11-23 | |||
| EP1054489A2 | 2000-11-22 | |||
| US9577403B2 | 2017-02-21 | |||
| CN1416229A | 2003-05-07 |
Attorney, Agent or Firm:
BEIJING TIAN QI ZHI XIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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