光学学报, 2019, 39 (3): 0305002, 网络出版: 2019-05-10
基于环形光束整形的衍射光学元件的精确设计 下载: 1514次
Precise Design of Diffraction Optical Elements Based on Annular Beam Shaping
衍射 二元光学 Gerchberg-Saxton算法 消除散斑 光束整形 衍射光学元件 diffraction binary optics Gerchberg-Saxton algorithm speckle elimination beam shaping diffractive optical elements
摘要
提出一种改进的Gerchberg-Saxton(G-S)算法,实现了基于环形光束的衍射光学元件的精确设计。所提算法可以确保输出平面上有小的采样间隔,起到了抑制散斑的作用;与未采用散斑抑制的常规的改进G-S算法相比,所提算法得到了更高性能的均匀光斑;仿真结果和实验结果一致。
Abstract
An improved Gerchberg-Saxton (G-S) algorithm is proposed to realize the accurate design of the diffractive optical elements based on annular beams. This algorithm ensures a small sampling interval on the output plane and suppresses speckle. Compared with the design results of the conventional improved G-S algorithm without speckle suppression, a uniform spot with better performance is obtained by the proposed algorithm. The simulated results are in agreement with the experimental results.
杨美霞, 孔哲, 谭峭峰, 任钢, 薛亮平. 基于环形光束整形的衍射光学元件的精确设计[J]. 光学学报, 2019, 39(3): 0305002. Meixia Yang, Zhe Kong, Qiaofeng Tan, Gang Ren, Liangping Xue. Precise Design of Diffraction Optical Elements Based on Annular Beam Shaping[J]. Acta Optica Sinica, 2019, 39(3): 0305002.