激光V型谐振腔的等价腔分析法  

Equivalent Cavity Analysis of Laser V-type Resonant Cavity

作　　者：魏勇[1] 范一鸣[1] WEI Yong;FAN Yiming(College of Physics and Electronics, Hunan Institute of Science and Technology, Yueyang 414006, China)

机构地区：[1]湖南理工学院物理与电子学院,湖南岳阳414006

出　　处：《湖南理工学院学报（自然科学版）》2017年第2期23-26,共4页Journal of Hunan Institute of Science and Technology(Natural Sciences)

基　　金：国家重大科研仪器研制项目(21427801);湖南省教育厅优秀青年项目(17B112)

摘　　要：为了分析激光谐振腔的稳定性,选取广泛应用的V型腔作为研究对象,将V型折叠腔等效为含有透镜的三镜直型腔(共轴球面腔),然后采用*g-参数等价腔分析法,将三镜直型腔等价为不含透镜的共轴球面腔,进而考虑激光晶体的热透镜效应,采用多元件光学谐振腔等价腔分析法推导出热透镜效应下V型腔的g?-、g?-等价空腔.该方法形象地将V型腔与共轴球面腔联系了起来,有效地体现V型谐振腔中各参量之间变化关系,通过对热透镜效应下V型腔的g?-、g?等价空腔的计算,便可对V型腔的稳定性的影响因素进行求解分析,为激光谐振腔的分析和设计提供重要参考.In order to analyze the stability of laser resonator,the widely used V cavity is chosen as the research object.The Vcavity is equivalent to a“three mirror cavity”with a lens in the cavity(coaxial spherical cavity).Then,using the g*-parameterequivalent cavity analysis method,the three mirror cavity is equivalent to the coaxial sphere without lens.Considering the thermallens effect of laser crystal,the equivalent cavity of g?-and g?-cavity in V cavity with thermal lens effect was deduced by usingequivalent cavity analysis method of multi element optical resonator.The V cavity and the coaxial spherical cavity are effectivelyconnected.and the relationship between the parameters of V resonator is effectively reflected.Based on the calculation of theequivalent cavity of g?-and g?-in the V cavity under the thermal lens effect,the stability of the V cavity can be solved.It canprovide important reference for the analysis and design of laser resonator.

关 键 词：V 型折叠腔 等价腔分析法 共轴球面腔 稳定性 

分 类 号：TN242[电子电信—物理电子学]