摘要
光学谐振腔中自再现模形成后腔镜上的横向场分布特征可由菲涅尔-基尔霍夫积分公式来描述,当腔中的菲涅尔数足够大时,菲涅尔-基尔霍夫积分公式可借助高斯近似进行简化。引入拉盖尔-高斯近似,借助MATLAB计算软件,对圆形镜共焦腔中的基模及高阶模式场分布特征进行理论描述和数值仿真,得到腔镜上横向场分布的模式及场分布特征,加深了对共焦腔中基模及高阶模模式特征与场分布特征的理解。
The transverse field distribution on the cavity mirror after the self-representation mode is formed in an optical resonator can be described by the Fresnel-Kirchhoff integral formula,however,the theory is quite complicated.When the Fresnel number in the cavity is large enough,the Fresnel-Kirchhoff integral formula can be simplified by Gaussian approximation.In this paper,with introducing the Laguerre-gaussian approximation and with the help of MATLAB software,we give the theoretical description and numerical simulation of the basic mode and higher-order mode field distribution characteristics in the confocal cavity of circular mirror.The transverse field distribution pattern and field distribution characteristics of the cavity mirror have been presented,which deepens the understanding of the pattern and field distribution characteristics of the basic mode and higher-order mode in the confocal cavity.
作者
陈华俊
Chen Huajun(School of Mechanics and Photoelectric Physics,Anhui University of Science and Technology,Huainan City,Anhui Province 232001)
出处
《黄河科技学院学报》
2022年第8期53-58,共6页
Journal of Huanghe S&T College
基金
国家自然科学基金项目(11647001,11804004)
中国博士后科学基金项目(2020M681973)
安徽省自然科学基金项目(1708085QA11)
高校优秀青年骨干教师国外访问研修项目(gxgwfx2021024)。
关键词
圆形镜共焦腔
基模
高阶模
场分布特性
matlab
confocal cavity of circular mirror
basic mode
higher-order mode
the field distribution properties,matlab
