长途传输波分复用系统的设计

随着波分复用（WDM）技术的广泛应用，在工程调测和系统的运行过程中出现了由于系统的适应能力较差和灵活性不够而引起系统优化时间过长的问题，给运营商带来了许多不便，同时，WDM已经由一般的长途应用向超长距离传输和城域网方面发展，适应性和灵活性成为WDM系统网络应用的主要要求，本文将介绍WDM系统的关键技术，重点论述WDM网络设计的一些原则，最后提出WDM系统设计的注意事项。

Network Designing of WDM System for Long-haul Transmission

With wavelength division multiplexing (WDM) being applied broadly in the network, there have been occurred some problems of longer optimization time caused by poor applicability and flexibility of WDM system during system commissioning and system in operation. At same time, WDM technology has been developed in application from normal long-haul to ultra long-haul and metro aspect, and the applicability and flexibility will become main requirements in WDM network application. This paper introduces some key technology of WDM system and stresses some rules in WDM network designing, and propose note items finally.