资源描述：
《通讯行业--光模块培训.ppt》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、OpticalTransceiversAuthor:Sujing2010.08.05DefinitionandFunctionOpticalmoduleisthedevicewhichconvertercoopersignaltoopticalsignal,andviceversa.Itisthemaindeviceinopticaltelecommunication.OpticaltelecommunicationsystemStandarddigitalopticalsystemThemostsimplyopticalsystemOpticalTra
2、nsceiversSurvey:Aopticalmodulecombinedby3parts:OSA,electronicdeviceandopticalconnector.光发射部分由驱动电路、控制电路（如APC、ATC)、光源三部分构成，具有发射禁止和监视输出等功能。光接收部分主要由PIN-TIA前放组件和主放电路两部分组成，并具有无光告警(LOS)功能。TelecommunicationnetSeewhereituse.？FTTX,FTTH，FTTP……Fiber-to-the-x（FTTx）(FTTx,x=Hforhome,Pforpremise
3、s,CforcurbandNfornodeorneighborhood)ClassificationbytransmissionmediumSinglemodetransceiverMultimodetransceiverFiberstructureThemaincontainoffiberishighpuritySiO2.Andwithsomeothermaterialswithveryfewquantity,inordertoenhancethereflection.MultimodeFiberTwostandardofMultimodefiberi
4、s62.5/125µmand50/125µm；62.5&50referstothediameterofferrules.125refersthediameterwithcoating.Multimodefiberonlyuseonlesscapacityandshortdistancetransmission.SinglemodeFiberWhenFerrulesdiameterisbetween5~10µm(9/125),thefibercanonlyallowonemethodtransmission,soSMfibernothastheproble
5、mofChromaticdispersion,itspeciallyuseinhighercapacityandlongdistancetransmission.TransmissionformofSMandMMfibergradedindexmultimodefiberstepIndexmultimodefiberSMFiberTransceiverPrinciplemapTransmitterPECLinput（lowspeed）CMLinput（highspeed）LasermodulatorTempcompensationelectricityc
6、ircuitDatainputLaserLaserdriverandAPCElectricitycircuitVccDDMMonitoryinput/outputReceiverLPFRestrictionamplifierSignalelectricitycircuitPDDataoutputDDMPECLbufferFirstputbufferTypesofTransceiverBypackage:1X9、SFF、GBIC、SFP、SFP+、XFP、X2、XENPAK、PON…...Products：SFPSFP---SmallFormFactorP
7、luggable,alsonamedmini-GBIC.TheadvantageofSFPishotpluggable,smallsize,andmetalcasing.Products：1×9Plasticcasing,9PINonthebottom,mainlyuseontheproductionofMediaconverterandVDOmultiplexor.SFFSmallFormFactor,metalcasing,2x5or2x10PINonthebottom,mainlyuseonSDH,SONET,fastEthernetandFibe
8、rChannel.GBICGigabitInterfaceConverter,m
