10Gb/s光网络向40/100Gb/s演进的扩容方法  

Technology of upgrading optical network from 10Gb/s To 40/100Gb/s

作　　者：何锋[1] 王婧[2] 

机构地区：[1]中国电子科技集团公司第三十四研究所,广西桂林541004 [2]桂林空军学院,广西桂林541003

出　　处：《光通信技术》2009年第11期26-28,共3页Optical Communication Technology

摘　　要：随着需求的增长,业务提供商一直都面临着光网络带宽扩容的压力。在新的技术条件下,以往靠增加网络规模来进行扩容的常规方法已经受到越来越多的局限。文章从常规带宽扩容手段的局限性入手,介绍和分析了DP-QPSK等当前热门的带宽扩容技术在光通信网络由10Gb/s向40/100Gb/s演进过程中的广阔前景及存在的不足。With the development of requirement, service providers always have to face the pressure of enlarging the capacity of the optical networks.Under the new technology conditions, the former methods have more and more limitations for fitting in with the needs of expanding bandwidth.This paper start with this limitation, introduces the advantages and shortages of the new technologis of expanding bandwidth, by analysing these technologies such as DP-QPSK.

关 键 词：DP-QPSK 扩容技术 调制编码方式 相干通信 光网络 

分 类 号：TN929.11[电子电信—通信与信息系统]