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1、数字光纤通信系统及其设计摘要当今世界，计算机与通信技术高度结合，光纤通信有了长足发展。纵观当今电信的主要技术，光纤和光波的变革极大的提高着信息的传输容量。进入1993年以后，我国光纤通信已处于持续大发展时期。其特征是大量新技术，特别是网络技术、高速介质接入网(HMAV)、光时分复用接入(OTMMA)和波分复用接入(WDMA)、光孤子(soliton)、掺铒光纤放大器(EDFA)、SDH产品等开始实用化并开展大量、深入的研究工作。面对光纤通信技术的普遍应用，了解光纤通信系统组成及其系统参数的测量技术现状，无论是对光纤通信的业主、经销商，还是对光纤通信的广大用户都是重要
2、的。本论文主要介绍数字光纤通信系统基本组成，含义及其特点，阐述数字光信通信系统的设计方法。针对WDM+EPFA数字光纤链路系统进行具体设计。关键字;数字光纤通信系统掺铒光纤放大器(EDFA)波分复用（WDM）DigitalopticalcommunicationssystemanditsdesignAbstracIntoday'sworld,thecombinationofcomputerandcommunicationtechnology,theheightofopticalfibercommunicationwithrapiddevelopment.Intoda
3、y'smaintechnologyoftelecommunications,opticalfiberandlightchangesgreatlyimprovestheinformationtransmissioncapacity.Since1993,Chinaintoacontinuousfibercommunicationhasgreatdevelopmentperiod.Itscharacteristicisanewtechnology,inparticularnetworktechnology,high-speedmediumaccess(HMAV),ligh
4、ttimemultiplexaccess(OTMMA)andWDMaccess(WDMA),opticalsolitons(soliton),erbiumdopedfiberamplifier(EDFA),SDHproductsbegantopracticalandlarge,deepresearchwork.Atthesametime,variousspecialopticalsystemintothefieldofnationaleconomy,contributedtoouropticalfibercommunicationtechnologyofvigoro
5、usdevelopment.Facingtheopticalfibercommunicationtechnology,understandthegeneralapplicationofopticalcommunicationsystemandthesystemparametersmeasurementtechnologysituationofopticalfibercommunication,whethertheowner,dealers,orforopticalfibercommunicationcustomersareimportant.Thispapermai
6、nlyintroducesthebasiccomponentsandfiberopticcommunicationssystem,expoundsthemeaningandcharacteristicsofdigitalcommunicationsystemdesignoflightletters.InWDMopticalfiberlinksEPFA+digitalsystemdesign.Keywords,Digitalopticalcommunicationsystemerbiumdopedfiberamplifier(EDFA)WDM目录1数字光纤通信系统··
7、·········································（4）1.1数字光纤通信系统概论··································（4）1.1.1数字光纤通信系统的组成····························（4）1.1.2数字光纤通信系统的含义····························（5）1.1.3数字光纤通信系统的特点····························（5）1.2数字光纤通信系统的设计方法····························（5）1.
