利用控溫的F—P腔改善全固化單頻Nd-YVO-,4-激光器的頻率穩(wěn)定性.pdf

1、山西大學(xué)碩士學(xué)位論文利用控溫的F—P腔改善全固化單頻Nd:YVO激光器的頻率穩(wěn)定性姓名：趙法剛申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：光學(xué)指導(dǎo)教師：潘慶張靖20040601摘要Improvingfrequencystabilityoflaserbymeansoftemperature—controlledFPcavityAbstractThefrequencystabilityofanallsolidstateNd：YV04laserissignifi

2、cantlyimprovedbymeansofaspeciallydesignedFPinterferometerusedforthefrequencystandardinthefrequencystabilizingsystemInthemodemexperimentalinvestigationofquantumopticsandquantuminformation，theaccuracyofthelongtermfrequency

3、stabilityoflasersisrequiredintherangeofafewMHzThetemperatureoftheFPcavityisaccuratelycontrolledbyasetofthermoelectriccooler(TEC)modulesattachedonthebodyofthecavityandtheelectronicfeed—backcircuitWefoundthatthelongtermuni

4、directionalfrequencyshiftoftheoutputlaserresultingfromtheslowincreaseofthecavitylengthundertheeffectofthetemperatureintegrationonthecavitybodyisessentiallyeliminatedThefrequency—stabilityoftheoutputlaserwiththepowerof530

5、mwisbetterthan200kHz(kiloher$2)inlminuteand23MHz(megahertz、in40minutesrespectivelyandthefluctuationofoutputpowerissmallerthanO5％overonehourBymeansofcontrollingaccuratelytemperatureofFPcavityusedinthefrequencystabilizings

6、ystemoflaser，thefrequencystabilityoflaserissignificantlyimprovedEspeciallythelong—termunidirectionalfrequencyshiftisessentiallyovercomeKeyWord：frequency—stability、Fabry—Perotcavity、Proportional，integralAmplifier、all—soli