一种用于超长跨距电力通信系统的DBP算法  

A DBP Algorithm for Ultra-long Span Unrepeatered Electric Power Communication System

作　　者：黄丽艳 李伟华 卢贺 夏小萌 喻杰奎 张传彬 徐健 郑强 

机构地区：[1]武汉光迅科技股份有限公司,武汉430205 [2]国家电网公司信息通信分公司,北京100761

出　　处：《光通信研究》2017年第5期10-13,共4页Study on Optical Communications

基　　金：国家电网公司"高阶泵浦"科技项目

摘　　要：提出了一种应用于双向拉曼放大超长单跨距光纤传输系统的低复杂度数字背向传输算法,该算法基于在接收端电域中反向求解薛定谔方程,可以在补偿光纤传输系统中色散的同时抑制非线性效应;基于双向拉曼放大系统对算法的功率曲线等进行了优化设计,降低了算法的复杂度;搭建了一个10Gbaud/s正交相移键控调制的双向拉曼传输实验系统,传输距离为320km。实验结果表明,优化后的数字背向传输算法的性能较传统算法提升了0.7~1dB。An optimized Digital Background Propagation （DBP） algorithm is proposed and experimentally demonstrated in a bidirectional Raman amplification unrepeated system. The algorithm is achieved by reversely solving the Schrodinger equation in electrical domain, which can compensate both chromatic dispersion and nonlinear effects. The proposed algorithm is implemented by optimizing the power curve. An unrepeated transmission of a 10 Gbaud/s Quadrature Phase Shift Keying （QPSK） signal over 320 km single mode fiber is experimentally demonstrated. The experimental results show that the performance is improved by 0.7 dB to 1 dB based on optimized DBP algorithm.

关 键 词：数字背向传输算法 双向拉曼放大 超长跨距 相干光通信 

分 类 号：TN929.11[电子电信—通信与信息系统]