密集波分复用技术的研究与应用

The dense wavelength division multiplexing(DWDM) and its application

密集波分复用(DWDM)技术是一种比较先进的光纤通信技术,并且相对成熟。传输网络的容量和质量已越来越受到各个运营商的重视,采用密集波分复用技术组建传送网己成共识。如何最大限度地利用现有传输资源,以较少的投入完成对传输网络的改造和优化,己成为运营商非常关心的问题。本文阐述了DWDM技术的产生背景与发展状况,基于通信网络宽带危机的事实,论述了应用DWDM技术建设宽带基础传送网的必要性,介绍了DWDM技术特点和设备的系统结构、DWDM的网络结构、网络设计和优化,在此基础上,给出了广州韶关电信网的DWDM的设计组网方案,并对其进行了测试、开通和维护。

The dense wave length division multiplexing （DWDM） technique is a kind of advanced and sophisticated optical fiber communication technique. More and more Internet service providers pay much attention to the capacity and quality of transmitting network, and they arrive at a common agreement with constructing a transmitting network by the DWDM technique. It＇s much of interest for the Internet service providers to make good use of the current transmitting resource to minimize the investment and to improve and optimize the transmitting network. In this paper the background and the status quo of DWDM are expatiated on. In light of the crisis of communication network broadband, the necessity for construction of communication network by using DWDM technique is discussed. And we also illustrate DWDM system＇s frame and its characteristics, and typical DWDM net- work frame, design and optimization. On the basis of these, we give the DWDM＇s design scheme for the telecom network in Shaoguan, Guangdong Province. Furthermore, the scheme has been tested, used, and maintained.