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《Fiber Optic Fundamentals纖維光學(xué)原理.ppt》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、FiberOpticFundamentalsPreparedforTheHandbookofFiberOpticDataCommunicationThirdEditionDr.CasimerDeCusatisIBMCorporationKeyConceptsBriefHistoryofOpticalFiberTechnologyMultimodeandSingle-modeFiberBasicFiberOpticLinkConceptsandApplicationstotheComputerIndustryOpticalfibervsCopperChallen
2、ges:ConnectivityandInteroperabilityElectricalConnectorElectricalConnectorTransceiverTransceiverFiberOpticCableOpticalConnectorOpticalConnectorOpticalPortOpticalPortNewertechnologiesinvolvinghigherdatarates,smallerformfactors,higherportdensities,pluggability,andparallellinksareshowin
3、ganincreasedneedtofocusonconnectivityandinteroperabilityissuesAfailureanywherealongthislinkwillcausetheentirelinktofailConclusionsHistorically,thefundamentalconceptsoffiberopticsdatebackto1927Multimodefibersuseacorediameterofeither50or62.5micronsShortwavelengthlasersShorterdistances
4、(fewhundredmeters)Single-modefibersuseacorediameterof9-10micronsLongwavelengthlasersLongerdistances(severalkilometers)Abasiclinkiscomposedofopticaltransceivers,cables,andconnectorsFiberopticsiswidelyusedforbothvoiceanddatacommunication,andisgraduallybecomingamorefundamentalpartoffut
5、urecomputerarchitectures
