環(huán)形腔氣體(He-Ne)激光器加速壽命試驗研究.pdf

1、西安電子科技大學碩士學位論文環(huán)形腔氣體（HeNe）激光器加速壽命試驗研究姓名：邊婷申請學位級別：碩士專業(yè)：光學工程指導教師：劉繼芳20100101AbstractAbstractInordertoobtain1ifetimedistributionandliretestmethodoffingHeNelaserthispaperadoptstheacceleratedlifetestingmethodinaconstantstresst

2、ohandle15laserswiththesameprocessofproductandthesametypeExistinglifedistributioninthedifferentacceleratingcurrentisverified，andlifeoflasergyroisestimatedfasterandmoreaccuratelyAccordingtotheexistingexperimentalconclusion

3、，thelifetimedistributionofthelaserobeysWeibulldistributionandanti—powerlawatlargeelectriccurrentAstheacceleratedstress，currentlevelin10mA，8mAand5mAareselectedPowercavitypressuredropandcurrentofthelaserarecollectedper20sT

4、hentestdataoflifetestingareobtainedandanalyzedExperimentalresultsshowthatthechangesofthetotalgaspressureinthecavityleadtothatthebestworkcurrentincreaseGastemperatureinthecapillaryaffectspowerofthelaserThevarianceofpoweri

5、ssmallTherefore，justthevalueofpowerisconsideredwhenfailurecriteriaofacceleratedlifetestaredeterminedUndercurrentstressof05—10mA，thelaserhasbeenworkinginnormalglowdischargeareaInotherwords，dischargemannerisnotchangedandne

6、wfailurefactorsarenotproducedInaddition，powerandcavitypressuredropofeachgrouphavethesamedisciplinePowerappearsheavebeforetherapiddecline，atthesametime，pipepressuredropappearsheavetransitorilyandthenthequalityofthelaserfe