基于超结构光纤光栅和非线性放大环镜的OCDM系统  

Superstructured Fiber Bragg Grating and Nonlinear Amplifying Loop Mirror Based on OCDM System

作　　者：陈小刚[1] 黄德修[2] 元秀华[2] 

机构地区：[1]三峡大学理学院,湖北宜昌443002 [2]武汉光电国家实验室(筹),武汉430074

出　　处：《光子学报》2008年第12期2430-2433,共4页Acta Photonica Sinica

摘　　要：实验研究了基于超结构光纤布喇格光栅的40Gbit/s×2的光码分复用系统,利用非线性放大环镜对系统解码输出脉冲进行了整形和噪音抑制.在非线性放大环镜非线性开关特性的作用下,解码输出脉冲的宽度由7.7ps压缩至3.6ps,干扰噪音得到了有效地抑制,实验中环镜的输入功率约为6mW.结果表明,采用非线性放大环镜能够提高超结构光纤光栅光码分复用系统的性能,这种有效抑制噪音的高速全光编解码还可以应用于光标签交换网络.40 Gbit/s×2 channel OCDM system based on superstructured fiber Bragg grating （SSFBG） was experimentally investigated. A nonlinear amplifying loop mirror （NALM） within the receiver was introduced to reshape the decoded pulse and suppress interference noise. The original 7.7 ps decoded pulse was compressed to 3.6 ps as well as interference noise was suppressed effectively by exploiting nonlinear switch characteristic of the NALM, and switching was obtained for peak signal power approximately 6 mW. From the experimental results,it can be concluded that the performance of SSFBG based on OCDM system was improved by using the NALM, and high speed all optical encoding and decoding with noise suppression was required in optical packet-switched networks.

关 键 词：光纤通信技术 光码分复用 全光编解码 超结构光纤布喇格光栅 非线性放大环镜 

分 类 号：TN929.11[电子电信—通信与信息系统]