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1、Reviewof《Fiber-OpticCommunicationsTechnology》Ch31．Workingprincipleofopticalfiber:totalinternalreflectiona)Structureofopticalfiberb)Criticalincidentangle,criticalpropagationangle,acceptanceangle,numericalaperture2．FiberAttenuationa)Bendingloss:macro-bending,micro-bendingb)Scatteringc)Absorption:
2、intrinsicabsorption,impurityabsorptiond)Calculationandmeasurementofattenuation3．IntermodalandChromaticDispersiona)Whatismode?b)RelationshipofV-numberandmodec)Influenceofintermodaldispersionontransmissionbitrated)Solutiontointermodaldispersion:graded-indexfiber,single-modefibere)Chromaticdispers
3、ion4．Bitrateandbandwidtha)Definitionsb)CalculationofbitrateCh41．ModeinEMtheorya)Linearpolarizationmodeb)Guidedmode,Radiationmode,Leakymodec)PhaseandGroupVelocitiesd)PowerConfinemente)CutoffWavelengthorfrequency2．Attenuationinmultimodefibersa)Intrinsiclossesandextrinsiclossesb)Modesattenuationan
4、dattenuationconstant3．Dispersioninmultimodefibersa)Dispersion,pulsespreading,bitrateandbandwidthCh51、Principleofsingle-modefibera)Modefieldb)Gaussianmodedistributionandmodefielddiameterb)Cut-offwavelength2、Attenuationa)Bendingloss,scattering,absorption3、Dispersionandbandwidtha)Chromaticdispersi
5、on:materialdispersion,waveguidedispersionb)Whyandhowtocopewithchromaticdispersion:conventional,dispersion-shifted,anddispersion-flattenedfibersc)Polarization-ModeDispersion(PMD)d)CalculationofbandswidthCh61、Modefielda)Cut-offwavelengthandeffectivecut-offwavelength2、Attenuationa)IntrinsicandExtr
6、insicLossesb)Comparisonoflossesinsingle-modefiberandmulti-modefiber3、CopingwithdispersioninaSMFa)Originationofdispersion:chromaticdispersion(materialdispersion,waveguidedispersion,profiledispersion),polarization-modedispersion(2)Dispersioncompensationandcontrol:dispersioncompensatingfiber,dispe
7、rsion-compensatinggrating,copingwithPMD4、Nonlineareffectsinasingle-modefibera)Principleofnonlinearrefractiveeffects,four-wavemixing,andstimulatedscatteringCh71.Fiberfabrication:produceapreform+drawingthepreforma)Outsidevapor-phase
