激光与光电子学进展, 2011, 48 (3): 032201, 网络出版: 2011-01-21   

高斯光束整形为平顶光束的非球面镜系统设计和面形参数分析 下载: 1179次

Design and Analysis of Surface Parameters of Aspheric Lenses System Converting Gaussian Beam to Flattop Beam
作者单位
北京工业大学激光工程研究院, 北京 100124
摘要
在将高斯光束整形为平顶光束的整形系统中,由两个非球面镜组成的系统是比较简单的结构形式,该系统由平凹镜和平凸镜组成。在实际生产加工中,非球面镜的非球面度直接反映加工的难度。在理论分析高斯光束整形为平顶光束的基础上,分析计算了几个特性参数对非球面截面曲线的影响,然后根据实际需要,在保证其紧凑性、尽可能地降低非球面度同时,按照ZEMAX对非球面镜输入参数的要求拟合得到尽可能优化的非球面镜系统结构。最后,对该非球面镜系统进行物理光学传播追踪,分析其光强分布。
Abstract
Among the reshaping systems converting a Gaussian beam to a flattop beam, the system composed of a plane-concave and a plane-convex lens, is a relatively simple structure. In actual production processing, the asphericity of an aspheric surface is directly relative to its manufacture difficulty. Based on theoretical analysis of the conversion from a Gaussian beam to a flattop beam, the influences of several characteristic parameters on the sectional curves of aspheric surface of lenses are calculated and analyzed. Then, according to the actual requirements of input expressions in ZEMAX, a better structure of aspheric lenses system is obtained under condition that compactness is not destroyed and the asphericity is reduced. At last, physical optics propagation through the aspheric system is analyzed and then the irradiance distribution is discussed.

陈凯, 李平雪, 陈檬, 张雪霞, 白振岙, 李港. 高斯光束整形为平顶光束的非球面镜系统设计和面形参数分析[J]. 激光与光电子学进展, 2011, 48(3): 032201. Chen Kai, Li Pingxue, Chen Meng, Zhang Xuexia, Bai Zhen′ao, Li Gang. Design and Analysis of Surface Parameters of Aspheric Lenses System Converting Gaussian Beam to Flattop Beam[J]. Laser & Optoelectronics Progress, 2011, 48(3): 032201.

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