Method for realizing precise target gain control for hybrid fibre amplifier, and hybrid fibre amplifier

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United States of America

PATENT NO 11239628
APP PUB NO 20190131758A1
SERIAL NO

16089929

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A method for realizing precise gain control for a hybrid fibre amplifier, and a hybrid fibre amplifier, in which by an erbium-doped fibre amplifier firstly outputting a constant power, a comparable source signal optical power is provided for a raman fibre amplifier of a next stage. A feedback for the gain control may be formed by comparing a source signal optical power calculated after starting pumping of the Raman fibre amplifier and a source signal optical power detected after pumping stops, thereby greatly improving gain control precision of the Raman fibre amplifier. Moreover, the erbium-doped fibre amplifier parts of all the hybrid fibre amplifiers may simultaneously output a constant optical power, and the Raman amplifier parts of all the hybrid fibre amplifiers may simultaneously start calibration, so that the time for starting operation of the entire system may be improved greatly.

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Patent Owner(s)

  • ACCELINK TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bu, Qinlian Wuhan, CN 17 17
Cai, Fei Wuhan, CN 39 58
Fu, Chengpeng Wuhan, CN 19 21
Jing, Yunyu Wuhan, CN 4 11
Tao, Jintao Wuhan, CN 10 13
Xiong, Tao Wuhan, CN 68 438
Yu, Chunping Wuhan, CN 15 25
Zhang, Cuihong Wuhan, CN 11 10

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