摘要
目前所谓的全光网络一般指基于ＤＷＤＭ传送技术的光传送网络（ＯＴＮ）。由于ＯＴＮ的节点采用ＯＡＤＭ和ＯＸＣ技术，为解决目前点到点的ＤＷＤＭ技术在应用中不能实现灵活组网和当网络失效时不能有效进行保护的问题提供了一种解决方法，使得ＯＴＮ具有传输容量大、组网灵活、网络具有可扩展性和可重构性、易于升级等特点，可透明传输具有代码格式的不同速率等级的用户数字信号，能够同时适应用户信号种类和服务种类不断增长的需求。
The all - optical network refers generally to the DWDM - based optical transport network( OTN) The adoption of OADM and OXC technology in the OTN node provides a solution to flexible point to point DWDM networking and effective protection against network failure and enables the deployment of large _ capacity, scalable, reconfigurable and upgradeable OTNs that provide transparent transport of digital signals of different rates and can meet the growing demands for signal types and service types.
出处
《世界电信》
2001年第1期21-25,共5页
World Telecommunications
