GaAs基大功率半导体激光器的研究进展-豆柴文库

您所在位置：网站首页 / GaAs基大功率半导体激光器的研究进展.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 2

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

GaAs基大功率半导体激光器的研究进展
Title:ResearchProgressonGaAs-BasedHigh-PowerSemiconductorLasers
Introduction:
GaAs-basedhigh-powersemiconductorlasershavegainedsignificantattentionfortheirwiderangeofapplicationsinoptoelectronicdevices,includingopticalcommunicationsystems,lasermachining,medicalinstrumentation,anddefensesystems.Thecontinuouseffortsintheirresearchanddevelopmenthaveresultedinremarkableprogress,aimingtoenhancetheirefficiency,reliability,andpoweroutput.ThispaperprovidesanoverviewoftherecentresearchadvancementsinGaAs-basedhigh-powersemiconductorlasers.
1.GaAsSubstrateGrowthTechniques:
ThechoiceofanappropriateGaAssubstrategrowthtechniqueplaysacrucialroleindeterminingthestructuralqualityandopticalpropertiesofsemiconductorlasers.MolecularBeamEpitaxy(MBE)andMetalOrganicVaporPhaseEpitaxy(MOVPE)arewidelyusedtechniquesforgrowingGaAssubstrates.Recentstudieshavefocusedonenhancingsubstratequalitythroughoptimizationsinepitaxialgrowthparameters,suchastemperature,growthrate,anddopinglevel,toreducedefectsandimprovematerialquality.
2.ImprovedWaveguideDesigns:
Waveguidedesignplaysacrucialroleindeterminingtheperformanceofhigh-powersemiconductorlasers.Severalinnovativeapproacheshavebeenproposedandimplemented,includingasymmetricwaveguidedesign,ridgewaveguidestructures,andtaperedwaveguides.Thesedesignshelpreduceopticallosses,enhancelightconfinement,andimprovebeamquality,resultinginimprovedlaserperformance.
3.ActiveRegionEngineering:
ActiveregionengineeringinvolvesmanipulatingthecompositionanddopingoftheactivelayersinGaAslaserstooptimizetheirperformance.Thistechniqueallowsforthereductionofnon-radiativerecombinationprocessesandminimizationofquantumdefect.Recentadvancesinthisareaincludetheadoptionofquantumdotsandquantumwells,whichofferimprovedcarrierconfinementandreducedaugmentedspontaneousemission.
4.ThermalManagement:
Effectivethermalmanagementisessentialforhigh-powersemiconductorlaserstomaintainstableoperationandimprovetheirreliability.Recentresearchhasfocusedondevelopingadvancedheatdissi