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1、ISSN:2230-7109(Online)
2、ISSN:2230-9543(Print)IJECTVol.3,IssuE1,Jan.-MarCh2012HarmfulEffectsofGammaIrradiationonOpticalFiberCommunicationSystemLinksUnderThermalEnvironmentEffectsDr.AhmedNabihZakiRashedDept.ofElectronicsandECE,FacultyofElectronicEngineering,Menouf,MenoufiaU
3、niversity,EgyptAbstractenvironments,suchasinnuclearwastetanks,nuclearreactorsandThispaperhasinvestigatedtheharmfuleffectsofGammaradiationtherapy,wherehigherlossinfibersduetotheradiationirradiationonfibercommunicationsystemlinksunderthermalfieldisfavored.Thefibersthathave
4、beentestedforsensingareenvironmenteffectsoverwiderangeoftheoperatingparameters.mainlyleadglass,Gedopedsilicaandpuresilicafibers.TheBoththeambienttemperatureandtheirradiationdosepossessradiationeffectsonP-dopedsilicabulkmaterialsandfibershavesevereffectsonthesystemtransmi
5、ssionlinkcharacteristicsbeenreportedandtheabsorptionmechanismhasbeenanalyzedandconsequentlytheperformancecharacteristicsofopticalafterhighdoseX-rayirradiation[9].Inthepresentstudy,thecommunicationsystems.Aswellaswehavedeeplydevelopedtheperformancecharacteristicsofoptical
6、communicationtransmissionmodellingbasicsoftransmissioncommunicationsystems,whichsystemsunderthermalirradiatedoperatingconditionsoverwidemaybeusedtoanalyzedthetotaldispersionforfirstandsecondrangeoftheaffectingparameters.Aswellasaconsiderableamountorders,systemrisetime,3-
7、dBbandwidth,transmittedsignalofhardradiationeffectsstudiesonindividualtransmissionlinksbandwidth,transmissionbitratesandproductsusingdifferenttoavarietyofradiationconditionsisdeeplyinvestigated,onlytransmissiontechniquesoftheseirradiatedopticaltransmissionlittleinformati
8、onisavailableontheradiationtoleranceathighcommunicationsystemsafterdifferentirradiationfluences.totaldoseandunderGammaradiation.KeywordsII.ModelingAnalysisGammaRadiations,ThermalEffects,OpticalCommunicationOpticalfiberhasthreedominantdispersionmechanisms,modal,System,Rad
9、iationDamageandFiberLinkfirst-orderchromatic,andsecond-orderchromaticdispersion.Eachofthesemechanismswi
