Compact Diode-Pumped 946 nm Nd:YAG Laser with Good Beam Quality

Rubel C. Talukder; Arkady Major

doi:10.3390/photonics11020171

Photonics (Feb 2024)

Compact Diode-Pumped 946 nm Nd:YAG Laser with Good Beam Quality

Rubel C. Talukder,
Arkady Major

Affiliations

Rubel C. Talukder: Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada
Arkady Major: Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB R3T 5V6, Canada

DOI: https://doi.org/10.3390/photonics11020171
Journal volume & issue: Vol. 11, no. 2
p. 171

Abstract

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A continuous-wave (CW), high-power, quasi-three-level Nd:YAG laser operating at 946 nm is reported. The beam quality of the laser is greatly improved. The laser consists of a composite Nd:YAG rod end pumped by a fiber-coupled diode laser inside a simple concave-plane cavity. At an incident pump power of 31 W, a maximum CW output of 9.98 W was obtained at 946 nm, with a beam quality factor of M2~5. The corresponding optical-to-optical efficiency was 32.2% with respect to the incident pump power. To the best of our knowledge, this is the highest output power at 946 nm with such a beam quality ever generated by diode-pumped Nd:YAG laser with bulk crystals.

Published in Photonics

ISSN: 2304-6732 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: http://www.mdpi.com/journal/photonics

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