谐振反射器与F-P标准具匹配选模的研究

F-PX(,,300072)F2P,F2P;F2P;;ResearchofModeSelectedbyResonantReflectorCooperatedwithF-PEtalonYeZhishengYuHonggangWangShengpingGaoHuiminJinZhenji(InstituteofPrecisionInstrumentsandPhoto2electronicEngineering,TianjinUniv.300072)AbstractTheprincipleandmethodsofselectingmodebyresonantreflectorcooperatedwithF2Petalonarediscussedandpresented.Experimentshavedemonstratedthelargestoutputratioofmono2modeofRubylaserscanbegotifresonantreflectorandF2Petalonarecorrectlymatched.Keywordsresonantreflector;F2Petalon;rubylasers1,(K=694.3nm),,[14],,,[3],,,F2P,,2F-PF2P1M:totalreflectionmirrorQ:pocklescellR:rubyrodP:apertureF:F2PetalonRF:resonantreflector1F-PFig.1Schemeofthesinglefrequencypulserubylasers,F2P,[5]T(K)=11+[4Rö(1-R)2]sin2(Dö2)(1)RF2P;D=(2PöK)2ndcosHF2P(K;dF2P;n;H)F2P2()106199912JOURNALOFOPTOELECTRONICSLASERVol.10No.6Dec.1999X:19992012:1999208220©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()[6],(d=3mm;n=1.5;R=0.15)2F-PFig.2TransmissivitycurveofF-PetalonR(K)=(G0B-CG0B+C)(G0B-CG0B+C)3(2)G0,G0=1;BC,BC=kj=1cosDj(iöGj)sinDjiGisinDjcosDj1Gk+1(3)K(K=3),Dj=(2PöK)njdjcosHjj;Gj,nj,djHjj,,;K,Hj=0,Gj=nj33Fig.3Thereflectancecurveoftheresonantreflector,[7]D(K)=-(1ö2)ln[R(K)T2(K)](4)(4),RF2PT,,,,F2PF2P,F2P4(3mm,26mm,n=1.5)F2P(3mm,15%,n=1.5),F2P,45%,F2P,,31%;,R=31%,45%,(a)ThereflectancecurvewithoutF2Petalon(b)ThecombinativereflectancecurvewhentheF2Petalonandresonantreflectorcorrectlymatched4F-PFig.4ThecombinativereflectancecurveoftheF-Petalonandresonantreflector3F-P,F2P,,,,F2P,:2ndcosH=mK(m=0,1,2),F2P[5],ndH,,,H,F2PndF2P[8]dKdT=K0(1d5d5T+1n5n5T)(5)K0,(1öd)(5dö5T)7156:F2P©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1ön)(5nö5T);T()F2P,()5,23,F2P(3mm,15%;0.82),,F2P23.324.5,,23.324.541F2P3mm;1s;15%,K9;3mm;1s;K9;F2P,0.05;,,F2P,,1000J()6F2P50mm,1.51,Kö50,95%,1260mm(6)R2FF2PR2F,,6(a)6(c);,R2FF2P3,;R2F,3,,6(b)6(d),,R2FF2PR2F,R2FF2P90%,R2F60%(a)single2modewhenF2PandR2Farecorrectlymatched(b)double2modewithF2PandR2F(c)single2modeonlywithR2F(d)double2modeonlywithR2F6F-PFig.6InterferencefringesofsinglefrequencyrubylasersproducedbymeasuringF-Petalon1MWercher.Single2modeOperationofaQ2switchedRu2byLaser.Appl.Phys.Lett.1965,7(2):392W.Koechner1..:,198312453..:,1989.1461484..:,1989.87885..:,1984.340815199910©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.