基于连续镜面变形镜本征模方法的复杂涡旋光场调控  

Vortex field manipulation based on deformation mirror with continuous surface

作　　者：熊光昀 唐奥 兰斌 沈锋[1,2] Xiong Guangyun;Tang Ao;Lan Bin;Shen Feng(Key Laboratory on Adaptive Optics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu,Sichuan 610209,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院自适应光学重点实验室,四川成都610209 [2]中国科学院光电技术研究所,四川成都610209 [3]中国科学院大学,北京100049

出　　处：《光电工程》2022年第11期66-78,共13页Opto-Electronic Engineering

基　　金：国家自然科学基金资助项目(61901449);装备预研重点实验室基金项目(6142A04190212);中国科学院光电技术研究所前沿部署资助项目(C21K006)。

摘　　要：本文提出了采用连续镜面变形反射镜的本征模法构建了完备正交基,通过需要调控的涡旋光场信息,来求解变形反射镜各个驱动器的电压。调控生成了拓扑荷数绝对值在5以内的整数阶、分数阶、多分数阶和叠加态的螺旋波前,实现了对涡旋光束的动态调控。生成结果与理想螺旋波前结果基本一致。显示了连续镜面变形反射镜拟合螺旋波前的能力,得到了较好的结果。该方法在高功率涡旋激光的动态调控上具有很好的应用前景。A complete orthogonal basis was constructed by using the eigen-mode method of continuous surface deformation mirror,and the voltage of each driver of the deformation mirror can be obtained according to the spiral wavefront information which needs to be manipulated.The spiral wavefront of integral order,fractional order,multifractional order,and superposition state with the absolute value of topological charge less than 5 was generated,and the dynamic manipulation of the vortex beam was realized.The results obtained were the same as those obtained by the ideal spiral wavefront.The ability of the continuous surface deformation mirror to fit the spiral wavefront was demonstrated and good results were obtained.This method has a good application prospect in the dynamic manipulation of high-power vortex laser.

关 键 词：涡旋光束 变形反射镜 本征模法 模式纯度 动态调控 

分 类 号：O436[机械工程—光学工程]