一种用于超长跨距电力通信系统的DBP算法

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10 Gbaud/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320 km。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0.7～1 dB。

Abstract

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 Schrdinger 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.

参考文献

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黄丽艳, 李伟华, 卢贺, 夏小萌, 喻杰奎, 张传彬, 徐健, 郑强. 一种用于超长跨距电力通信系统的DBP算法[J]. 光通信研究, 2017, 43(5): 10. HUANG Li-yan, LI Wei-hua, LU He, XIA Xiao-meng, YU Jie-kui, ZHANG Chuan-bin, XU Jian, ZHENG Qiang. A DBP Algorithm for Ultra-long Span Unrepeatered Electric Power Communication System[J]. Study On Optical Communications, 2017, 43(5): 10.

一种用于超长跨距电力通信系统的DBP算法

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