文档介绍：该【光纤通信课程设计课件Class11-03 】是由【马克里思】上传分享，文档一共【102】页，该文档可以免费在线阅读，需要了解更多关于【光纤通信课程设计课件Class11-03 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。workDesignClass11OutlineWDM/?DefinitionDensewavelengthdivisionmultiplexing(DWDM)isafiber-optictransmissiontechniquethatemployslightwavelengthstotransmitdataparallel-by-bitorserial-by-characterHowdoesDWDMfairbetter?NoO-E-OrequiredProtocol&BitRateindependenceIncreasedoverallcapacityatmuchlowercostCurrentfiberplantinvestmentcanbeoptimizedbyafactorofatleast32TransparencyPhysicallayerarchitecture?supportsbothTDManddataformatssuchasATM,,“Grow-as-you-go”investmentGracefulevolutiontomaturehigherbit-ratetechnology197519801985199019952000OpticalFibreSDHDWDMTimeline2005CWDM2008EvolutionofDWDMLate1990’s1996DWDMEarly1990’sNarrowbandWDM1980’sWidebandWDM16+channels100~200GHzspacing2~8channels200~400GHzspacing2channels1310nm,1550nm64+channels25~50GHzspacingProblem:DemandformassiveincreasesincapacityImmediateSolution:DenseWavelengthDivisionMultiplexingLongertermSolution:worksProblemsandSolutionsWavelengthDivisionMultiplexing