Alexandrite lasers with blue-diode-pumping
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Author(s)
Damzen, Michael
Xiao, Huaifeng
Jiang, Xunuo
Type
Journal Article
Abstract
The availability of high-power and high-brightness blue diode lasers makes them attractive as low-cost pump sources for broadly tunable Alexandrite lasers. In this paper we investigate the performance of an Alexandrite laser pumped by a high-power fiber-delivered blue diode module. Output power 1.84 W is achieved, the highest power from blue diode pumped Alexandrite to date. Excellent pump absorption is demonstrated of scrambled pump polarization on both a-axis and b-axis of Alexandrite crystal. Wavelength tuning and dual wavelength operation is produced using the self-birefringent filtering of the Brewster-cut Alexandrite crystal. An analysis is made of laser efficiency and mode formation including the creation of higher-order Laguerre-Gaussian vortex modes (LG01 and LG02). Performance is compared to red diode pumping and prospects for further optimization and power-scaling are discussed.
Date Issued
2023-02-13
Date Acceptance
2023-01-25
Citation
Optics Express, 2023, 31 (4), pp.5832-5842
ISSN
1094-4087
Publisher
Optical Society of America (OSA)
Start Page
5832
End Page
5842
Journal / Book Title
Optics Express
Volume
31
Issue
4
Copyright Statement
© The Author(s) 2023. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
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Publication Status
Published