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基于无芯光纤结合保偏光纤的可切换多波长光纤激光器.docx

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基于无芯光纤结合保偏光纤的可切换多波长光纤激光器 Title:DesignandPerformanceAnalysisofaSwitchableMulti-wavelengthFiberLaserBasedonCorelessFiberandPolarization-MaintainingFiber Abstract: Inrecentyears,therehasbeenagrowingdemandforcompactandversatilefiberlasersthatcanoperateatmultiplewavelengths.Thispaperpresentsthedesignandperformanceanalysisofaswitchablemulti-wavelengthfiberlaserbasedonthecombinationofcorelessfiberandpolarization-maintainingfiber.Theproposedlasersystemutilizestheadvantagesofbothfiberstoachievehigh-performanceandwavelengthflexibility.Thedesign,simulation,andexperimentalresultsdemonstratethefeasibilityandeffectivenessoftheproposedlasersystem. 1.Introduction: Fiberlasershavegainedsignificantattentioninvariousapplications,includingtelecommunications,sensing,andmetrology,duetotheircompactsize,highefficiency,andreliability.However,conventionalfiberlasersaretypicallydesignedtooperateatasinglewavelength,limitingtheirversatility.Switchablemulti-wavelengthfiberlasershaveemergedasapromisingsolutiontoovercomethislimitation.Inthispaper,weproposeanoveldesignthatcombinescorelessfiberandpolarization-maintainingfibertorealizeaswitchablemulti-wavelengthlasersystem. 2.DesignandPrinciple: Theproposedlasersystemconsistsofacorelessfiberasthegainmedium,apolarization-maintainingfiberasthemodecontrolelement,andawavelengthselectivecomponentforwavelengthswitching.Thecorelessfiberprovidesalargemodeareaforefficientgain,whilethepolarization-maintainingfiberensurespolarizationstabilityandmodecontrol.Byincorporatinganintracavitywavelengthselectivecomponent,suchasafiberBragggratingorafiberloopmirror,multiplewavelengthscanbeachievedbyadjustingthegratingormirrorcharacteristics. 3.SimulationandOptimization: Tooptimizethelaserperformance,numericalsimulationsbasedonthelaserrateequationsareconducted.Thesimulationsconsiderkeyparameterssuchasgain,loss,anddispersioncharacteristicsofthefibers.Byoptimizingthefiberlengths,pumppower,andwavelengthselectivecomponent,theoutputpowerandwavelengthswitchingcapabilitiesofthela