Single-longitudinal-mode vortex Nd:YVO4 laser using a circular Dammann grating for pump shaping

Jiaxin Song; Junjie Yu; Weilin Cao; Yuefei Li; Dawei Zhang; Jianlang Li

doi:10.35848/1882-0786/ad379b

Applied Physics Express (Jan 2024)

Single-longitudinal-mode vortex Nd:YVO4 laser using a circular Dammann grating for pump shaping

Jiaxin Song,
Junjie Yu,
Weilin Cao,
Yuefei Li,
Dawei Zhang,
Jianlang Li

Affiliations

Jiaxin Song: School of Optical-Electrical Information and Computer Engineering, University of Shanghai for Science and Technology , Shanghai 200093, People’s Republic of China
Junjie Yu: Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Science, Shanghai 201800, People’s Republic of China
Weilin Cao: School of Optical-Electrical Information and Computer Engineering, University of Shanghai for Science and Technology , Shanghai 200093, People’s Republic of China
Yuefei Li: School of Optical-Electrical Information and Computer Engineering, University of Shanghai for Science and Technology , Shanghai 200093, People’s Republic of China
Dawei Zhang: School of Optical-Electrical Information and Computer Engineering, University of Shanghai for Science and Technology , Shanghai 200093, People’s Republic of China
Jianlang Li: School of Optical-Electrical Information and Computer Engineering, University of Shanghai for Science and Technology , Shanghai 200093, People’s Republic of China

DOI: https://doi.org/10.35848/1882-0786/ad379b
Journal volume & issue: Vol. 17, no. 4
p. 042003

Abstract

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In this research, a 1064 nm single-longitudinal-mode (SLM) vortex beam was generated from an annular-pumped Nd:YVO _4 microchip laser, in which a circular Dammann grating was used to reshape the 808 nm pump light into an annular intensity profile. As a result, the laser emitted a SLM LG _01 beam with a maximum output power of 192 mW. A straightforward technique for producing SLM vortex beams is made available by this work.

Published in Applied Physics Express

ISSN: 1882-0778 (Print); 1882-0786 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Physics
Website: https://iopscience.iop.org/journal/1882-0786

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