Title:
METHOD OF CONTROLLING GAIN OF FIBER AMPLIFIER AND DEVICE UTILIZING SAME
Document Type and Number:
WIPO Patent Application WO/2016/184246
Kind Code:
A1
Abstract:
A method of controlling gain of a fiber amplifier and a device utilizing same, employing a digital component to replace a conventional closed-loop analog control unit, and computing, according to gain or a configuration of an optical output power in combination with an amplified spontaneous emission (ASE) compensation power, on the basis of a present control mode, a final optical output power. The method comprises: smoothing an optical input power so as to remove a discrete frequency noise, while providing certain compensation to an input signal. The embodiments of the present invention enhances performance of a system by adopting a derivative control algorithm and an integral control algorithm, enabling a closed-loop control system to complete a control cycle in substantially 1 μs, effectively realizing a gain lock and power lock, meeting dynamic and steady state indicators provided by a user, addressing an issue in which a fiber amplifier does not have high-accuracy ASE compensation, and employs a low-speed derivative control, thereby increasing accuracy of ASE compensation and a speed of a derivative control.
Inventors:
ZHU MO (CN)
Application Number:
PCT/CN2016/076902
Publication Date:
November 24, 2016
Filing Date:
March 21, 2016
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H01S3/067; H04B10/073
Foreign References:
| CN101877615A | 2010-11-03 | |||
| CN101141201A | 2008-03-12 | |||
| CN101017307A | 2007-08-15 | |||
| US20040051938A1 | 2004-03-18 |
Other References:
HE, HUAJIE: "Comparison of Measurement Method for EDFA Gain and Noise Factor", GUANGDONG COMMUNICATION TECHNOLOGY, vol. 19, no. 2, 30 April 1999 (1999-04-30), pages 38, XP009502627
See also references of EP 3300190A4
See also references of EP 3300190A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
北京康信知识产权代理有限责任公司 (CN)
北京康信知识产权代理有限责任公司 (CN)
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