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低串扰的多波长光纤光栅色散补偿器
引用本文:谭中伟,曹继红,陈勇,刘艳,宁提纲,简水生. 低串扰的多波长光纤光栅色散补偿器[J]. 物理学报, 2007, 56(1): 274-279
作者姓名:谭中伟  曹继红  陈勇  刘艳  宁提纲  简水生
作者单位:北京交通大学光波技术研究所,北京,100044
基金项目:国家自然科学基金;北京交通大学校科研和教改项目
摘    要:分析了光纤光栅色散补偿系统中的串扰,并比较了几种常用的多波长光纤光栅色散补偿器的串扰特性,结合串联的窄带光纤光栅和取样光纤光栅的优点,提出一种抑制光纤光栅色散补偿系统串扰的方法.它通过在邻近信道间引入随机时延差,既能改善取样光纤光栅的线性串扰特性,又能抑制交叉相位调制效应和四波混频等非线性串扰.使用该方法可以得到具有低串扰的多波长光纤光栅色散补偿器.

关 键 词:光纤通信  光纤光栅  色散补偿  串扰
文章编号:1000-3290/2007/56(01)/0274-06
收稿时间:2006-04-14
修稿时间:2006-04-14

Multi-wavelength dispersion compensator based on fiber gratings with low crosstalk
Tan Zhong-Wei,Gao Ji-Hong,Chen Yong,Liu Yan,Ning Ti-Gang,Jian Shui-Sheng. Multi-wavelength dispersion compensator based on fiber gratings with low crosstalk[J]. Acta Physica Sinica, 2007, 56(1): 274-279
Authors:Tan Zhong-Wei  Gao Ji-Hong  Chen Yong  Liu Yan  Ning Ti-Gang  Jian Shui-Sheng
Affiliation:Institute of Lightwave Technology , Beijing Jiaotong Uniwrsity , Beijing 100044,China
Abstract:A novel method is proposed to suppress the crosstalk of the DWDM system with dispersion compensated by fiber gratings, combining the merits of both concatenated narrowband fiber gratings and sampled fiber gratings. Random time delay is induced only between the adjacent channels to improve the characteristics of fiber gratings' linear crosstalk, with the cross modulation effects and the four wave mixing effects being suppressed simultaneously. Using this method,we can realize the low crosstalk multi-wavelength dispersion compensators based on fiber gratings.
Keywords:optical communication   fiber grating   dispersion compensation   crosstalk
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