高速DWDM通信技术及进展  

Technologies for high-rate DWDM transmission systems and their recent advances

作　　者：章喆 陈征 马卫东 

机构地区：[1]武汉光迅科技股份有限公司,武汉430074

出　　处：《光通信研究》2015年第1期5-8,共4页Study on Optical Communications

基　　金：国家"八六三"计划资助项目(2013AA011304)

摘　　要：综述了高速DWDM(密集波分复用)系统中的关键技术,包括QPSK(四相相移键控)、8QAM(8进制正交幅度调制)和16QAM(16进制正交幅度调制)等新型调制格式、超低损耗光纤/拉曼放大和新型光集成器件,并分析、比较了这些关键技术对DWDM系统传输产生的不同影响。在此基础上,介绍了近年来DWDM大容量传输的一些成功试验。试验表明,这些关键技术有着广阔的应用前景。This paper first presents an overview of the key technologies for high-rate DWDM transmission systems,including QPSK,8QAM,1 6QAM and other novel modulation formats,ultra-low loss optical fibers/Raman amplification and new opti-cal integrated devices.Then it analyzes and compares the different impacts of these technologies on DWDM system transmis-sion.On this basis,it introduces several successful experiments on large-capacity DWDM transmission in recent years,which shows that these technologies have broad prospects of applications.

关 键 词：密集波分复用通信 新型调制格式 拉曼放大 光集成器件 

分 类 号：TN914[电子电信—通信与信息系统]