强激光与粒子束, 2017, 29 (5): 051004, 网络出版: 2017-05-04  

基于非球面镜的圆环形光束非线性整形方法

Annular beam nonlinear beam shaping method based on aspherical mirror
作者单位
中国船舶重工集团公司第718研究所, 河北 邯郸 056027
摘要
提出了一种利用非球面镜对圆环形光束进行非线性整形的方法,该方法利用两个高次非球面镜片小角度放置组成光束变换光路,能够在几乎不损失功率的情况下灵活调整环形光束的遮拦比和强度分布,也能够实现空心光束和实心光束的相互转换,且镜片加工难度低。实验结果表明,利用该方法搭建的光路与理论分析结果吻合较好,能够较好地对光束进行非线性整形。
Abstract
This paper presents a method of annular beam nonlinear beam shaping by aspherical mirrors. The beam shaping system which contains two high-order aspherical mirrors can adjust the obscuration ratio and intensity distribution easily on the premise that there is almost no power loss. This method can realize mutual transformations come true between solid beams and hollow beams. Experimental results show that the method provides a good way for nonlinear beam shaping, and the optical path by this method agree well with theoretical analysis result.
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刘现魁, 牛志峰, 郭建增, 李柱, 任晓明, 王振华, 韦承甫. 基于非球面镜的圆环形光束非线性整形方法[J]. 强激光与粒子束, 2017, 29(5): 051004. Liu Xiankui, Niu Zhifeng, Guo Jianzeng, Li Zhu, Ren Xiaoming, Wang Zhenhua, Wei Chengfu. Annular beam nonlinear beam shaping method based on aspherical mirror[J]. High Power Laser and Particle Beams, 2017, 29(5): 051004.

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