通信工程设计论文: 光纤通信系统研究\设计及数据传输 【摘要】20世纪90年代以来光纤通信得到了迅速的发展,新技术不断涌现并已开始进入全光传输、全光通信阶段。 波分复用(WDM)是在同一根光纤中同时传输两个或众多不同波长光信号的技术。本文介绍了光纤通信的发展、特点、基本组成和波分复用技术(WDM)的基础知识、应用状况及目前存在的问题和发展状况,其中包括稀疏波分复用(CWDM)技术和密集波分复用(DWDM)技术的特点并对两者做了比较和分析。同时介绍了WDM系统对光安全进程技术的要求及其在无源光网络和城域网建设中的应用等方面的知识。最后,介绍了光纤通信的新技术。 【关键词】密集波分复用技术(DWDM);稀疏波分复用技术(CWDM);APR进程;IP over WDM Fiber systems research, design and data transmission 【Abstract】 Fiber munication has being developing rapidly since 1990' account of new technique, the Fiber munication has came into the fifth munication system, which is being to enter into all-optical delivering munication stage. WDM is a technique which delivers two or more different waves of optical signals using the same one Fiber optical at the same time. This thesis presents the development of Fiber munication, its fundamental construction and its feathers. Of course, the paper tells the basic knowledge of WDM including CWDM and DWDM's features ,their differences, the problems in WDM and its development. Then it introduces the technological requires toward optical safety process in WDM system and the application in PON and CAN of WDM technique. At last, it mends the new technology in Fiber munication. 【Key words】DWDM (Dense Wavelength Division Multiplexing);CWDM (Coarse WavelengthDivisionMultiplexing);APR process and IP over WDM 1. 引言 30多年来光纤通信飞速发展,光纤通信新技术层出不穷,前两
