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半导体激光阵列光栅-外腔光谱合束设计模拟 Title:DesignandSimulationofSemiconductorLaserArrayGrating-ExternalCavitySpectralCombining Abstract: Thedevelopmentofsemiconductorlaserarraygrating-externalcavityspectralcombiningpresentsapotentialsolutiontoenhancetheoutputpowerandspectralpropertiesoflasersystems.Inthispaper,wefocusonthedesignandsimulationofsuchaconfiguration.Webeginbyintroducingtheconceptandadvantagesofsemiconductorlaserarraysandgrating-externalcavitysystems.Then,wediscussthekeyparametersanddesignconsiderationsforspectralcombining.Furthermore,weoutlinethesimulationapproachtoevaluatetheperformanceoftheproposeddesign.Finally,wepresentthesimulationresultsandanalyzetheperformanceofthegrating-externalcavityspectralcombiningsystem.Theresultsdemonstratetheeffectivenessofthedesigninachievinghigh-powerlaseroutputswithimprovedspectralproperties. 1.Introduction Semiconductorlasersarewidelyusedinvariousapplicationsduetotheircompactsize,highefficiency,andlowcost.However,theoutputpowerofindividualsemiconductorlasersislimited.Toovercomethislimitation,researchershaveproposedtheuseofsemiconductorlaserarrays.Bycombiningtheoutputpowerofmultiplelasers,semiconductorlaserarrayscanachievehighertotalpoweroutputs.Additionally,grating-externalcavitysystemsprovideameansofcontrollingtheoutputspectrumofsemiconductorlasers. 2.AdvantagesofSemiconductorLaserArrayGrating-ExternalCavitySystems 2.1IncreasedOutputPower Theuseofmultiplelasersinasemiconductorlaserarraycansignificantlyincreasetheoutputpowercomparedtoasinglelaser.Thisisparticularlyusefulinapplicationsthatrequirehigh-powerlaseroutputs. 2.2TunableSpectrum Grating-externalcavitysystemsenableprecisecontrolovertheoutputspectrumofsemiconductorlasers.Byadjustingthegratingparametersandexternalcavitylength,specificspectralcharacteristicscanbeachieved.Thisisimportantinapplicationswhereaspecificwavelengthoranarrowbandspectrumisdesired. 3.KeyParametersandDesignConsiderationsforSpectralCombining 3.1LaserArrayConfiguration Thearrangementofthelasersinthearrayaffects