全光网的关键器件——光交叉连接器与光分插复用器

全光网（AON,all-optical network）以波长路由光交换技术和波分复用传输技术（WDM）为基础,它的网络节点由光分插复用器和光交叉连接器构成,能在光域上实现高速信息流的传输、交换、路由和故障恢复等功能。光交叉连接器（OXC）与光分插复用器（OADM）是全光网中最重要的网络器件,是真正实现全光网关键性功能的必要前提,也是目前国内外光通信器件厂商研究和开发的热点。本文结合全光网的发展,介绍了光交叉连接器（OXC）与光分插复用器（OADM）的基本原理、性能指标,对不同的节点结构进行了比较与讨论,并介绍与比较了目前国内外厂商的主要产品。

The Essential Devices of All-optical Network-OXC and OADM

All-optical Network(AON), based on optical switch and WDM, constituted by the OXC and OADM in the net nodes. It can realize the transfer, switch, route and error recovery of high speed info-stream. OXC and OADM, the most important part of AON, is the essential precondition of the implement of key functions of AON, and it is also the hotspot of researching and developing work on which communication companies focus. In this paper, we introduce the development processes and characteristics of AON, analyze the basic principle, performance guideline of OXC and OADM, compare and discuss the different node structure, and the main products of the company abroad and in China.