使用PWAM光纤传输技术的红外检测系统(英文)-豆柴文库

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使用PWAM光纤传输技术的红外检测系统(英文)
Title:Pulsed-WavelengthAmplitudeModulationforFiberOpticInfraredDetectionSystem
Abstract:
Infrareddetectionhasbecomeanessentialtechnologyinvariousfields,suchasaerospace,defense,environmentalmonitoring,andindustrialprocesscontrol.Pulsed-WavelengthAmplitudeModulation(PWAM)usingfiberoptictechnologyhasemergedasapromisingtechniqueforimprovingtheperformanceofinfrareddetectionsystems.Thispaperpresentsanin-depthanalysisofthePWAMfiberopticinfrareddetectionsystemanditspotentialapplications.
1.Introduction
Infraredradiationisemittedbyallobjectswithtemperaturesaboveabsolutezero,anditsdetectioniscrucialfornumerousapplications.Traditionalinfrareddetectionsystemsrelyontheuseofbulkyandexpensiveequipment.However,theemergenceofPWAMfiberoptictechnologyhasopenedupnewpossibilitiesforcompact,flexible,andcost-effectiveinfrareddetectionsystems.
2.PWAMFiberOpticInfraredDetectionSystem
2.1PrincipleofPWAM
PWAMutilizestheprincipleofamplitudemodulationtodetectinfraredradiation.Apulsedlaserdiodeisusedtogeneratemodulatedlight,whichisthentransmittedthroughafiberopticcable.Themodulatedlightinteractswiththeinfraredradiation,andtheintensitymodulationisproportionaltothedetectedradiation.Aphotodetectorconvertsthemodulatedlightintoanelectricalsignalforfurtheranalysis.
2.2AdvantagesofPWAM
-Improvedsignal-to-noiseratio:PWAMprovidesahighsignal-to-noiseratioduetotheuseofmodulationtechniques,resultinginenhancedsensitivityandaccuracyofinfrareddetection.
-Long-distancetransmission:Fiberopticcablesofferlowlossandhighbandwidth,allowingforthetransmissionofmodulatedinfraredsignalsoverlongdistanceswithoutdegradation.
-Compactnessandflexibility:PWAMsystemscanbedesignedinacompactformfactor,makingthemsuitablefordeploymentinconstrainedenvironments.Additionally,fiberopticcablescanbeeasilyroutedtovariouslocations,enablingflexibledeploymentoptions.
-Immunitytoelectromagneticinterference:TheuseoffiberopticcablesinPWAMsystemsmakesthemimmunetoelectromagneticinterference,ensuringreliableoperationinchall