ROF系统中的关键技术分析与应用

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1、!!皇堕皇查兰嬖主兰丝堡兰塑窒THERESEARCHANDAPPLICATl0N0FKEYTECHNOLOGIESINROFSYSTEMABSTRACTWirelessandwidebandcommunicationarethehottopicsinthefieldofcommunication．Wirelesscommunicationmakesthecommunicationinanywhere，anytimeandwithanyonepossible．Andthewidebandcommunicationcan

2、deliverthedata，voice，videoandotherinformationtocompaniesandindividualsquickly，whichmakestheworkandlifediversified．Thus．t11eintegrationofthewirelesscommunicationandthewidebandcommunicationiSthedirectionofthedevelopmentoffuturecommunication．Radio—On-l：、ibertechni

3、queiSstudiedinthisPaper．ThistechniquetakestheadvantageofthefiberandhighfrequencyradiowavetorealizethewidebandcommunicationwithIowerattenuationIOSS．1argebandwidth，theimmunitytoradiofrequencyinterference，theeasyinstallationandmaintenance，thereducedpowerconsumptio

4、nandtheoperationalflexibility．ThekeytechniquesandtheapplicationofROFarediscussedinthisPapeLBackground．thenetworkarchitectureandtheadvantageoftheROFarediscussedinthefirstchapter．ThesecondchapterdiscussestheROFtransmissionsystem，whicharetheBaseband—over-Fiber,the

5、IF—over-FiberandtheRF．over—Fibertransmissionsystems．ThekeytechniquesofROFsuchastheopticalmodulationformats，theelectricmodulationformats，theopticalamplifierandtheup-conversiontechniquearediscussedinthethirdchapter．Inthemodulationpart，theprincipleofDSB，SSB，OCSand

6、OFDMmodulationformatsarestudiedandcompared．Intheopticalamplifierpart．theprincipleofEDFAandRamanFiberAmplifieraswellasthedesignofitsparametersareinvestigated．Inmeup·conversionpart，theup—conversiontechniquebasedontheFWMismainlyinvestigated．Afterstudyingthetransmi

7、ssioncharacteristicofFWM—generatedsignals，itcanbegotthat北京邮电人学硕士学位论文摘要thesignalhavingthephasecharacteristicofCSRZsignalhasthebettertransmissionperformanceforitsbeaercharacteristicagainstdispersion．ROFnetworkprotocolanditsapplicationaregiveninthefourthchapter．Fi

8、nally,theconclusionisgiveninthefifthchapter．KEYWORDS：Radio-—On--Fiber；Opticalmodulation；Opticalamplifier；Up—conversion；Fourwavelengthmixing北京邮屯大学硕十学位论文缩略语CSRZ：CarrierSuppres