摘要
光通信自问世至今得到高速发展 ,被普遍推广应用。但一直以来 ,光纤传输主要还是作为一种信号传送的手段 ,网络的组织主要是在电的层面。随着社会对信息需求的日渐增长 ,仅在电层组织网络已经不能满足需求 ,于是光通信从电层网络向光层网络发展 ,出现了OTN(光传送网 )。本文从网络的分层结构和网络演进的角度出发 。
Development of optical communication technologies is rapidly and it is promoted and used widely since it comes out.But optical transˉmission is only one of the means for signal transportation in past long term.Networks were structured in electrical layer mainly.Electrical layer network cannot meet the increasing requirements of more and more information;so that electrical layer network is evolved to optical layer network,i.e.OTN(optical transport network).The technologies included in OTN and the developed situations of main of those technologies have been inˉtroduced from network layered structure and network evolution point of viewin this paper.
出处
《电信科学》
北大核心
2003年第6期24-27,共4页
Telecommunications Science
