光交叉连接和光插分复用技术及其应用

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用服务种类不断增长的需求。

OXC and OADM Technology and Applications

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.