浅谈光传送网技术及应用演进  

The Technology and Evolution of Optical Transport Network

作　　者：赵辉 尹天阔 ZHAO Hui;YIN Tiankuo(Troops 31404 PLA,Dalian 116021,China)

机构地区：[1]解放军31401部队,辽宁大连116021

出　　处：《通信电源技术》2021年第18期114-116,120,共4页Telecom Power Technology

摘　　要：(Optical Transport Network,OTN)技术即光传送网,是一种通过光介质将各光、电层网元互联而形成的光传送网络,并为客户侧信号提供远距离传送、光电分叉复用、路由交换、级联管理及监控保护等服务。与传统同步数字系列(Synchronous Digital Hierarchy,SDH)技术相比,OTN技术具有许多优势:一是支持更多元化的客户侧信号接入;二是具备更强的前向误码纠错功能;三是提供更多的级联监控字节;四是支持更高吞吐量的业务交叉;五是具有更好的可扩展性。主要对OTN技术及设备的演变过程进行探究。Optical Transport Network(OTN)technology,is an optical transmission network formed by interconnecting various optical and electrical layer nes through optical medium,and provides long-distance transmission,photoelectric bifurcation multiplexing,routing and switching,cascade management,monitoring and protection and other services for customer side signals.Compared with traditional Synchronous Digital Hierarchy(SDH)technology,OTN technology has many advantages.One is to support more diversified customer side signal access.Second,it has stronger forward error correcting function.The third is to provide more cascaded monitoring bytes.The fourth is to support higher throughput of business cross.Fifth,it has better scalability.This paper mainly explores the evolution process of OTN technology and equipment.

关 键 词：光传送网(OTN)网络 开销字节 光线路接口板 

分 类 号：TN9[电子电信—信息与通信工程]