波分复用光网络中四波混频最小化的研究  

Study on Minimizing Four-Wave Mixing in WDM Optical Network

作　　者：王雨行 关莉珍 刘嘉伟 聂鹏程 闫煜鹏 宋锡策 余先伦[1] Wang Yuhang;Guan Lizhen;Liu Jiawei;Nie Pengcheng;Yan Yupeng;Song Xice;Yu Xianlun(School of Electronics and Information Engineering,Chongqing Three Gorges University,Chongqing 404020,China)

机构地区：[1]重庆三峡学院电子与信息工程学院,重庆404020

出　　处：《应用激光》2024年第5期208-215,共8页Applied Laser

基　　金：国家重点研发计划(2021YFB3901405);国家自然科学基金(U2030116);重庆市重点实验室“三峡库区地质环境监测与灾害预警”项目(YB2020C0301)。

摘　　要：为降低基于波分复用全光网络中四波混频等非线性效应引起信道中的串扰,降低信道误码率和提高通信质量,针对波分复用全光网络传输系统,分析四波混频产生的机理,提出一种色散补偿光栅与波长分配相结合的方案。在2~7信道系统下分别对此方案与传统方案、波长分配方案、信道间距100 GHz方案、使用色散补偿光栅方案进行数值试验。随着波分复用全光网络系统中信道数的增加,波长分配方案效果逐渐降低,而利用色散补偿光栅对抑制四波混频效应的效果逐渐增加,并且色散补偿光栅的色散值也在逐渐增加。在信道数较小时,采用波长分配方案,信道的平均误码率为6.5×10^(-217),此方案的信道平均误码率可达1.07×10^(-235);当信道数较大时,采用色散补偿光栅方案,信道的平均误码率为1.36×10^(-51),此方案的信道平均误码率可达3.34×10^(-63)。研究结果对于波分复用光网络中四波混频最小化具有重要意义。In order to reduce the crosstalk in the channel,reduce the channel error rate,and improve the communication quality due to the non-linear effects such as Four-wave Mixing(FWM)in Wavelength Division Multiplexing(WDM)all-optical network,the mechanism of FWM in WDM all-optical network transmission system is analyzed,and a scheme combining the dispersion compensating grating with the wavelength assignment is presented.In 2-7channel system,this scheme is numerically experimented with traditional scheme,wavelength assignment scheme,100GHz channel spacing scheme,and using dispersion compensated grating scheme.With the increase of the number of channels in the WDM all-optical network system,the effect of wavelength allocation scheme decreases gradually,while the effect of using the dispersion compensation grating to suppress the FWM effect increases gradually,and the dispersion value of the dispersion compensation grating also increases gradually.When the number of channels is small,using the wavelength assignment scheme,the average error rate of the channel is 6.5×10^(-217),and the average error rate of this scheme can reach 1.07×10^(-235).When the number of channels is large,using the dispersive compensated grating scheme,the average error rate of the channel is 1.36×10^(-51),and the average error rate of this scheme can reach 3.34×10^(-63).The results are of great importance to the minimization of FWM in WDM optical networks.

关 键 词：波分复用 四波混频 色散补偿光栅 波长分配 误码率 

分 类 号：TN929.11[电子电信—通信与信息系统]