摘要
采用σ圆和π圆传播图解法,对直型谐振腔中高斯光束的光束特性进行了分析,利用几何图形中各参量之间的几何关系,将所研究的问题分为同侧和异侧的情况分别加以分析,通过相关公式的计算,获得了束腰参数b。最后,利用Matlab软件计算了当两个腔镜完全相同时高斯光束的参数。计算的结果表明,此方法简便可行,与实际情况相符,具有一定的实用价值。
The study on characteristics of Gauss beam has great significance for design of laser resonator with excellent performanee. This paper adopts the graphic method of σ and π circles propagation to analyze tile beam characteristics of Gauss beam in a straight resonantor. Using the geometric relation between the parameters, the research question can be divided into the ipsilateral and contralateral two questions, by the related calculation formula, the waist parameter b is obtained. Finally using the Matlab software the cavity mirror when two are completely identical is calculated and the parameters of the Gaussian beam are obtained. The calculation results show that this method is simple and feasible, is consistent with actual situation, and has a certain practical value.
出处
《实验室研究与探索》
CAS
北大核心
2015年第4期34-36,44,共4页
Research and Exploration In Laboratory
基金
国防基础研究项目(A0920110019
A0920110016)
