High-Efficiency Ho:YAP Pulse Laser Pumped at 1989 nm

Chao Niu; Yan Jiang; Ya Wen; Lu Zhao; Xinyu Chen; Chunting Wu; Tongyu Dai

doi:10.3390/cryst11060595

Crystals (May 2021)

High-Efficiency Ho:YAP Pulse Laser Pumped at 1989 nm

Chao Niu,
Yan Jiang,
Ya Wen,
Lu Zhao,
Xinyu Chen,
Chunting Wu,
Tongyu Dai

Affiliations

Chao Niu: Jilin Key Laboratory of Solid-State Laser Technology and Application, Changchun University of Science and Technology, Changchun 130022, China
Yan Jiang: Jilin Key Laboratory of Solid-State Laser Technology and Application, Changchun University of Science and Technology, Changchun 130022, China
Ya Wen: Jilin Key Laboratory of Solid-State Laser Technology and Application, Changchun University of Science and Technology, Changchun 130022, China
Lu Zhao: Jilin Key Laboratory of Solid-State Laser Technology and Application, Changchun University of Science and Technology, Changchun 130022, China
Xinyu Chen: Jilin Key Laboratory of Solid-State Laser Technology and Application, Changchun University of Science and Technology, Changchun 130022, China
Chunting Wu: Jilin Key Laboratory of Solid-State Laser Technology and Application, Changchun University of Science and Technology, Changchun 130022, China
Tongyu Dai: National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China

DOI: https://doi.org/10.3390/cryst11060595
Journal volume & issue: Vol. 11, no. 6
p. 595

Abstract

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A Tm:YAP laser with an output wavelength of 1989 nm was selected for the first time as the pump source of a Q-switched Ho:YAP laser. When the absorbed power was 30 W, an average power of 18.02 W with the pulse width of 104.2 ns acousto-optic (AO) Q-switched Ho:YAP laser was obtained at a repetition frequency of 10 kHz. The slope efficiency was 70.11%, and the optical-optical conversion efficiency was 43.03%. The output center wavelength was 2129.22 nm with the line width of 0.74 nm.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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