40Gb/s RZ-DQPSK接收机色散补偿与解调系统设计  

Adaptive dispersion compensation and demodulation system design of 40Gb/s RZ-DQPSK receiver

作　　者：季刚[1] 周靖[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,长沙410073

出　　处：《光通信技术》2015年第6期30-33,共4页Optical Communication Technology

摘　　要：基于双反馈方法,为40Gb/s归零差分四相位相移键控(RZ-DQPSK)光纤通信接收机提出一种自适应终端色散补偿与解调方案。介绍了接收系统模型、色度色散补偿算法和调整算法等,利用平衡接收机反馈和误帧率检测反馈实现准确的RZ-DQPSK光信号解调和自适应色散补偿。最后,通过计算机仿真和实际通信工程项目中的实验数据验证了文章中所提出的接收机的性能。In this paper, an adaptive dispersion compensation and demodulation scheme is proposed for 40Gb/s RZ-DQPSK fiber optical communication receiver based on double-feedback method. The receiver model and dispersion compensation algorithm and Mach＇Zehnder interferometer algorithm are introduced, both the balanced receiver feedback and the frame error rate feedback are used synchronously to realize the accurate demodulation and dispersion compensation of RZ-DQPSK fiber optical signals. Finally, the perfor- mance of this receiver is given by the computer experiments and data from the communication project in practice.

关 键 词：光通信 归零差分四相位相移键控(RZ-DQPSK) 自适应色散补偿 

分 类 号：TN929.11[电子电信—通信与信息系统]