Automatic real-time control for gain-flattened fiber Raman amplifiers

被引:3
|
作者
Zhang, XL [1 ]
Shao, LY
Yu, ZW
Cheng, DR
Jin, RX
He, SL
机构
[1] Zhejiang Univ, Ctr Opt & Electromagnet Res, Joint Lab Opt Commun, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
[2] Royal Inst Technol, Dept Microelect & Informat Engn, Lab Photon & Microwave Engn, S-16440 Kista, Sweden
关键词
optical amplifier; fiber Raman amplifier; automatic control; gain flattening;
D O I
10.1016/j.optcom.2004.05.013
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An automatic control algorithm for flattening the gain of a fiber Raman amplifier is derived from the Raman scattering equations. A pseudo-inverse gain matrix is introduced to adjust the powers of the pump lasers. The algorithm is simple, fast, effective, robust and insensitive to the length and type of the fiber. It is demonstrated experimentally that the gain flattening for Raman amplifiers comprising various types and lengths of fiber and with different target gains can be achieved automatically with this algorithm. The algorithm converges for both small and large input signal. Flattened Raman gain with a fluctuation less than 0.40 dB over a 50-nm bandwidth for a 50-km SMF or less than 0.20 dB over a 40-nm bandwidth for a 6.6-km dispersion compensated fiber is realized in the experiment. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:79 / 84
页数:6
相关论文
共 50 条
  • [1] Design of multistage gain-flattened fiber Raman amplifiers
    Chen, J
    Liu, XM
    Lu, C
    Wang, YX
    Li, ZH
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2006, 24 (02) : 935 - 944
  • [2] Gain-flattened tellurite-based fiber Raman amplifiers
    [J]. Zhao, Y. (zhaoyun901015@163.com), 2013, Beijing University of Posts and Telecommunications (20):
  • [3] Gain-flattened fiber Raman amplifiers with nonlinearity-broadened pumps
    Chestnut, DA
    Taylor, JR
    [J]. OPTICS LETTERS, 2003, 28 (23) : 2294 - 2296
  • [4] Tailoring of Raman gain bandwidth of tellurite glasses for designing gain-flattened fiber Raman amplifiers
    Jose, Rajan
    Qin, Guanshi
    Arai, Yusuke
    Ohishi, Yasutake
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2008, 25 (03) : 373 - 382
  • [5] Broadband and gain-flattened optical fiber amplifiers
    Nishimura, M
    [J]. NEW TRENDS IN OPTICAL SOLITON TRANSMISSION SYSTEMS, 1998, 5 : 391 - 402
  • [6] Gain-flattened ultra-wideband fiber amplifiers
    Cao, Y
    Raja, MYA
    [J]. OPTICAL ENGINEERING, 2003, 42 (12) : 3447 - 3451
  • [7] Design and spectral characteristics of gain-flattened tellurite-based fiber Raman amplifiers
    Masuda, H
    Mori, A
    Shikano, K
    Shimizu, M
    [J]. JOURNAL OF LIGHTWAVE TECHNOLOGY, 2006, 24 (01) : 504 - 515
  • [8] Gain-flattened Photonic Crystal Raman Fiber Amplifier
    Gong, Jia-Min
    Guo, Cui
    Shen, Yi-Nan
    Liu, Jian-Hua
    Meng, Ling-He
    Yang, Meng
    [J]. Guangzi Xuebao/Acta Photonica Sinica, 2017, 46 (07):
  • [9] Automatic gain control for Raman fiber amplifiers
    Ning, JP
    Lu, XC
    Chen, ZQ
    [J]. SEMICONDUCTOR LASERS AND APPLICATIONS, 2002, 4913 : 41 - 44
  • [10] Simple gain control method for broadband Raman amplifiers gain-flattened by multi-wavelength pumping
    Emori, Y
    Kado, S
    Namiki, S
    [J]. ECOC'01: 27TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION, VOLS 1-6, 2001, : 158 - 159