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

页数：7

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