Beam quality factor of aberrated Laguerre-Gaussian optical beams

被引：6

作者：

Mabena, Chemist M. ^{[1
]}

Bell, Teboho ^{[1
]}

Mphuthi, Nokwazi ^{[1
]}

Harrison, Justin ^{[1
,2
]}

Naidoo, Darryl ^{[1
,2
]}

机构：

[1] CSIR Photon Ctr, Meiring Naude Rd, Pretoria, South Africa

[2] Univ Witwatersrand, 1 Jan Smuts Ave, Johannesburg, South Africa

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 16期

基金：

新加坡国家研究基金会;

关键词：

SPHERICAL-ABERRATION; LIQUID-CRYSTAL; LASER; DEGRADATION; DIFFRACTION;

D O I：

10.1364/OE.493594

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The influence of aberrations on the beam quality factor of Laguerre-Gaussian beams is investigated. We derive analytical expressions for the beam quality factor due to astigmatism and spherical aberration. We show that the width of a Laguerre-Gaussian beam is a significant parameter that determines the aberration effects on the beam quality factor. For each aberration, we derive an expression for the width that separates the region where the beam quality factor changes infinitesimally and where it changes drastically. The validity of the analytical expressions is assessed by performing numerical simulations. There is excellent agreement between the analytical and numerical results.& COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：26435 / 26450

页数：16

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