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ID:37364538
大小:2.71 MB
页数:76页
时间:2019-05-22
《高亮度全固态激光器设计及连续波内腔中红外PPLN光参量振荡器研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、天津大学硕士学位论文高亮度全固态激光器设计及连续波内腔中红外PPLN光参量振荡器研究姓名:张少敏申请学位级别:硕士专业:物理电子学指导教师:丁欣20070601ABSTRACTHigh-p0Werandhigh.brightllessall—solid-statelaserS,whichhaVealotofadVantages,suchashighpoweroutput,compactandhighbeamqualityandsoon,havebeenwidelyusedinmilita叮andindus仃yasmelasersource.Butthethemalef诧ctisthe
2、bottleneckofhigh—powerandhigh-brightnesslasers,whichhasbeen血rtherrcsearchedbymanyscientists.Mid-in仔aredsourceat3~5¨mhasmanyapplicationindetection,airmonitoring,opticalspec仃umanalysisandlaserI.adarandsoonbecauseofitSuniquepredominance.Recently,withthedeVelopmentofthenonline盯c巧stal,suchasPPLNc巧st
3、aI,锄dthepumpingsource,utilizingopticalparameteroscillatortogenerateMid—in丘aredat3~5¨mhasattractedmaIlyexpens.ThisdissertationisbasedonthereseaI.chesof锕ofields:oneisthe也e彻alefrect,whichisthebottleneckofhi曲-powerhi曲-bri曲t11esslaser’meotheristheconti咖ous.wavemid—in丘aredsourceat3.66—4.41¨m,whichisg
4、enemtedbyopicalpammetricoscillator.Themaincontentsandkeycreationpointsareasfollows:1.Generation,innuencesonl嬲ersystem,measurement'mitigationandcompensationofthen:11ale丘’cctsinLDside-pumpedandend-pumpedsolid.statelasersaretheoreticallyresearched柚dnumbericallyanalyzedindetail,whicho伍玎thet11eoreti
5、calbasisforhigh—powerhi曲.brightIlesslaserdesign;2.Wehavemea叫edthethe咖alfocallengthoftheLD—sidc-pumpedNd:YAGlaserandeIra、vnthetwoUcm、resbasedon也emdius蛐dtangentialcomponentswithdia’erentcavit),length.ThechamcteristicsofthetwoUcurvesare如alyzed托dreseaI、ched.Whenthelaseropemtesatthebounda巧ofthetange
6、ntialcomponent,theou巾utpowerandbeamqualit)rarebothhigh,thenthehigh—powerandhi曲.brightnesslaserisachieVed;3.Anewtheoreticalmodelofconti咖ous—waveintracaVi够singlercsonantparametricosc订lators,accommodatingaⅡmlti·丘equencypumplaserfield,ispresented.Thecharact硎sticsoftheidlerwaveandthesignalwaveisdesc
7、ribed,whichisthetlleoreticalbasisofhighpowerdensi妙intheresonatorandhigheneI苫yconVersione丘iciency;4.Acontinuous—waveintmcaVityOPOwhichcangeneratecontinuous。waVeat3.6D4.41UmhasbeendesigIled.Forthefirsttime,wehaVerealizedthecontinuou
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