A fireworks algorithm based Gerchberg-Saxton algorithm for the design of diffractive optical element for beam shaping

被引：5
作者：
Niu, Bowen [1 ]
Dai, Xingang [1 ]
Hu, Yanjun [1 ]
Zhang, Hongru [1 ]
Jing, Gaoshan [2 ]
Zhang, Zhiping [3 ]
Fan, Guofang [1 ]
机构：
[1] Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Minist Educ, Beijing 100044, Peoples R China
[2] Chinese Acad Sci, Inst Microelect, Beijing 100444, Peoples R China
[3] Fudan Univ, Acad Engn & Technol, Shanghai 200433, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2024年 / 557卷
关键词：
Diffractive optical element; Beam shaping; Fireworks algorithm; GS algorithm; FW-GS algorithm; PHASE;
D O I：
10.1016/j.optcom.2024.130303
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a fireworks algorithm based Gerchberg-Saxton (GS) algorithm for the design of diffractive optical element is developed, named FW-GS algorithm, in which, the explosion mechanism of the fireworks algorithm is introduced to efficiently find the initial phase, thereby ensuring a superior phase solution for the subsequent GS algorithm. By employing this approach to shape a Gaussian beam into a square beam, the results illustrated the notable improvement of 16.10 % in RMSE and 3.29 % in diffractive efficiency when compared to the traditional GS algorithm, while exhibiting stable optimization performance. Furthermore, the proposed algorithm demonstrated adaptability to various shaping targets, with RMSE improved by about 16 % and diffractive efficiency improved by more than 3 % for shaping to circular, annular, and rectangular beams.
引用
收藏
页数：7
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