OTN——未来信息社会的承载平台

OTN——The Bearing Platform for FutureInformation Society

为实现高速、大容量、多业务、全透明的光传送网,目前人们正在集中研究光交叉、光放大、光电集成、光无源器件以及全光信号处理等方面课题。同时以 DWDM技术为基础的 OTN组网也从点到点形式发展到了具有OADM和OXC节点的网状网结构,而网络生存性的需要又衍生出各种网络自愈技术。文中还提到了OTN中存在的技术难点,指出了OTN技术发展中需要研究的课题。

To realize high - speed, high capacity, multi - service and all -transparent optical transmission networks, subjects such as optical cross connection, optical amplification, opt - electrical integration passive de-vices and all - optical signal processing are under study. Meanwhile, the DWDM - based OTN networking structure has developed from the point -to - point pattern to a mesh topology with OADM and OXC nodes. To suit the needs of network survivability, various network self- healing technolo-gies have been developed. The difficult technical points of OTN are de-scribed , and OTN - related research items are pointed out.