城域WDM环网及其应用

The Metropolitan WDM Ring and Its Applications

文章阐述了城域WDM环网的节点结构、保护方式、波长转换器、子速率复用和光网络管理等,给出了WDM环网在城域应用时应考虑的一些因素,并分析了运营商所关心的系统成本问题。

The metropolitan WDM ring network is introduced from the aspects of node architecture, protection modes, features of OTU and sub-rate multiplexer/demultiplexer, network management, etc. Then, some factors that should be considered in the application of WDM ring in metropolitan area are given, and the system cost that operators commonly concern is also analyzed.