采用非线性补偿算法的超长跨距系统  

Ultra-long Span Unrepeatered Fiber Optical Communication System with Nonlinear Compensation Algorithm

作　　者：周文婷 崔力民 王鑫 陈建新 张海波 徐健 龙函 郑强 ZHOU Wen-ting;CUI Li-min;WANG Xin;CHEN Jian-xin;ZHANG Hai-bo;XU Jian;LONG Han;ZHENG Qiang(State Grid Xinjiang Information ~ Telecommunication Company,Urumqi 830000,China;Accelink Technology Co.,Ltd.,Wuhan 430205,China;Wuhan National Laboratory for Optoelectronics,HUST,Wuhan 430074,China)

机构地区：[1]国网新疆电力公司信息通信公司,乌鲁木齐830000 [2]武汉光迅科技股份有限公司,武汉430205 [3]华中科技大学武汉光电国家实验室,武汉430074

出　　处：《光通信研究》2018年第4期14-17,51,共5页Study on Optical Communications

基　　金：国家电网新疆电力有限公司科技项目

摘　　要：搭建一个双向拉曼放大超长跨距光纤传输系统,在接收端采用非线性补偿算法来补偿因传输距离长和入纤光功率高所带来的光纤非线性效应,并通过实验成功实现了10Gbaud/s 16正交幅度调制(QAM)信号的传输,传输距离为300km。仿真和实验结果表明,通过采用非线性补偿算法,接收端信号的性能相比未使用非线性补偿算法时提高了2dB。证明了非线性补偿技术在超长跨距光纤传输系统中是非常有效且必要的。In this paper, a hi-directional Raman amplified unrepeatered system is established, and the nonlinearity compensation algorithm is applied at the receiver side. A 300 km unrepeatered system is experimental demonstrated at 10 Gbaud/s with 16 Quadrature Amplitude Modulation （QAM） format. The simulation and experimental results show that the performance of the system can be improved by 2 dB alter nonlinearity compensation. The experiment indicates that the nonlinear compensation algorithm is effective and necessary for the unrepeatered system.

关 键 词：双向拉曼放大 超长跨距 非线性补偿算法 相干光通信 

分 类 号：TN914[电子电信—通信与信息系统]