光学学报, 2014, 34 (12): 1206004, 网络出版: 2014-11-04
基于强度调制/直接探测系统的偏振解复用方法
Polarization Demultiplexing Method for Intensity-Modulation Direct-Detection Optical Communication Systems
光通信 强度调制/直接探测 偏振解复用 数字信号处理 optical communicaitons intensity-modulaiton direct-detection system polarization demultiplexing digital signal processing
摘要
针对强度调制/直接探测(IM/DD)系统,采用一种改进型光分路器结合数字信号处理(DSP)算法,实现了一种简单有效的偏振解复用方法。仿真结果表明,在2×40 Gb/s的偏振复用强度调制/直接探测(PDM-IM/DD)系统中,该方法能够较好地分离两路偏振复用信号,并且算法收敛迅速,与传统IM/DD系统相比,误码率为10-4时对应的功率灵敏度仅为-2.3 dBm。
Abstract
A simple and effective polarization demultiplexing method employing improved optical splitter and digital signal processing (DSP) algorithm for intensity-modulation direct-detection (IM/DD) optical communication systems is proposed. Simulation results show that in a 2×40 Gb/s polarization-division-multiplexing intensity-modulation direct-detection (PDM-IM/DD) optical transmission system, the PDM signals can be effectively separated. The DSP algorithm can rapidly converge with the receiver sensitivity of -2.3 dBm at bit error rate of 10-4.
周馨雨, 闫连山, 易安林, 陈智宇, 潘炜, 罗斌. 基于强度调制/直接探测系统的偏振解复用方法[J]. 光学学报, 2014, 34(12): 1206004. Zhou Xinyu, Yan Lianshan, Yi Anlin, Chen Zhiyu, Pan Wei, Luo Bin. Polarization Demultiplexing Method for Intensity-Modulation Direct-Detection Optical Communication Systems[J]. Acta Optica Sinica, 2014, 34(12): 1206004.