基于多幅值多时隙编码的120Gb/s光偏振复用系统设计  

A design of an optical polarization multiplexing system based on multi-slot and multi-level coding technique

作　　者：张薇[1] 陈新桥[1] 柴佳[1] 黄亚楠[1] 

机构地区：[1]中国传媒大学信息工程学院

出　　处：《激光杂志》2018年第2期56-59,共4页Laser Journal

基　　金：国家科技支撑计划项目(No.2012BAH38F04)

摘　　要：基于多幅值多时隙映射编码（MSAC）原理改良了MSAC的编码方式,设计验证了120Gb/s的MSAC光偏振复用系统,将6用户数据（20Gbps）均分为2组,每组采用MSAC编码将3用户数据比特序列映射为MSAC信号,然后将这两组MSAC信号通过偏振复用传输到接收端。仿真实验中得到MSAC符号眼图清晰,单用户数据恢复准确,验证了系统的可行性。通过对比新型MSAC在有无偏振复用情况下在高速传输系统中对色散容忍度的表现,论证该编码方式结合偏振复用在高速传输系统中应用的可行性。为MSAC和偏振复用系统的实际应用提供指导。Based on the multi-slot and multi-level coding（ MSAC） technique,an optical polarization multiplexing system with 120 Gbps data rate was designed. While 6 users（ 20 Gbps） were divided into 2 groups,3-user-data sequences of each group were transformed to MSAC signal by MSAC technique. Then according to polarization multiplexing technique,the two MSAC signals were transferred to the receiver. From the simulation,the clear eye diagram of MSAC and accurate recovered single-user-data verify the feasibility of the system. Compared with non-polarization multiplexing system,an analysis of the relationship between system Q value and the dispersion tolerance was presented.Results show that the MSAC combined polarization multiplexing technology is feasible. The designed system has the advantages of high spectrum efficiency and strong anti-interference ability.

关 键 词：多幅值多时隙映射编码(MSAC) 偏振复用 Q值 色散容忍度 

分 类 号：TN929.11[电子电信—通信与信息系统]