波分复用系统中混合色散补偿方案的研究  

Investigation on hybrid dispersion compensating in WDM system

作　　者：申静 郑嘉琪 SHEN Jing;ZHENG Jiaqi(School of Information Science and Engineering,Shenyang University of Technology,Shenyang Liaoning 110870,China)

机构地区：[1]沈阳工业大学信息科学与工程学院,辽宁沈阳110870

出　　处：《长江信息通信》2022年第2期67-68,72,共3页Changjiang Information & Communications

摘　　要：色散补偿机制限制了光纤通信系统中传输信号的脉冲展宽效应。为了限制脉冲展宽效应,提出了一种针对波分复用光纤传输系统的两种色散补偿技术相结合的方案,对线性啁啾光纤光栅(CFBG)和色散补偿光纤(DCF)的色散补偿方案进行了建模分析,在波分复用系统(WDM)中采用干路DCF分波后支路CFBG相结合的方案与传统前置色散补偿方案进行仿真比较,从误码率、Q值以及眼图三方面分析了以上两种方案的WDM系统在80Gb/s时的性能。实验表明,DCF与CFBG相结合的色散补偿方案能有效提高WDM系统的Q值,以便更有效的实现高质量超长距离的传输。The dispersion compensation limits the pulse broadening effect of transmitted signals in optical fiber communication systems.In order to limit the pulse broadening effect,a WDM system combining two dispersion compensation techniques is proposed.The linear chirped fiber Bragg grating(CFBG) and dispersion compensation fiber(DCF) are modeled and analyzed.The scheme of combining trunk DCF and branch CFBG in WDM system is simulated and compared with the traditional pre dispersion compensation scheme.The performance of WDM system of the above two schemes at 80 GB/S is analyzed from three aspects of bit error rate,Q value and eye diagram.Experiments show that the dispersion compensation scheme combined with DCF and CFBG can effectively improve the Q value of WDM system,so as to realize high-quality and ultra-long distance transmission more effectively.

关 键 词：波分复用系统 色散补偿 色散补偿光纤 啁啾光纤光栅 Q值 

分 类 号：TN929.11[电子电信—通信与信息系统]