Flat-top and doughnut-like laser beam profiles: an overview of the modified algorithm for converting the arbitrary shaped beam using phase only spatial light modulator

被引：0

作者：

Galaktionov, Ilya ^{[1
]}

Sheldakova, Julia ^{[1
]}

Nikitin, Alexander ^{[1
]}

Toporovsky, Vladimir ^{[1
]}

Kuzmitsky, Pavel ^{[1
]}

Kudryashov, Alexis ^{[1
]}

机构：

[1] Russian Acad Sci, Sadovsky Inst Geosphere Dynam, Leninskiy Ave 38,Bld 1, Moscow, Russia

来源：

NOVEL OPTICAL SYSTEMS, METHODS, AND APPLICATIONS XXVII | 2024年 / 13130卷

基金：

俄罗斯科学基金会;

关键词：

laser beam shaping; wavefront correction; spatial light modulator; Shack-Hartmann wavefront sensor; intensity analyzer; adaptive optics; SCATTERING MEDIA; ADAPTIVE OPTICS; FOCUSING LIGHT; MIRROR;

D O I：

10.1117/12.3028201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laser beam shaping problem remains relevant for various applications of modern laser physics - from laser cutting of metals to wireless long-distance energy transmission. For example, the transformation of the original Gaussian profile into flat-top profile is necessary to improve the technology (material processing, holograms recording) while the doughnut-like profile ensures uniform temperature distribution on a target and increases the stability of various thermal processes, such as melting. To solve this problem the automated adaptive optical system with phase-only special light modulator and intensity analyzer are assembled and tested. The experimental results of the flat-top and doughnut-like intensity distributions formation are presented. We were able to concentrate similar to 60% and 75% of the initial beam energy for the doughnut-like and flat-top intensity distributions, correspondingly.

引用

页数：7

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