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Proceedings Paper

High average power passively Q-switched Yb:YAG micro-laser
Author(s): Chris McIntosh; A. D. Hays; Stephen R. Chinn; Lew Goldberg; Jeffrey Leach
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Paper Abstract

We demonstrate operation of a compact, passively Q-switched Yb:YAG laser producing 10W average power at 1030nm in an 8.5kHz train of 1.2mJ, 1.6ns pulses. The laser is cw end-pumped with a fiber-coupled wavelength-stabilized 940nm diode. The pump light from the 105m diameter (0.1 NA) pigtail is collimated using a short focal length lens and directed into a 3mm long, 1mm thick 10 at.% Yb:YAG crystal. The saturable absorber is a Cr4+:YAG crystal with 76% unsaturated transmission. The laser’s slope efficiency is 52% and the optical-to-optical conversion efficiency is 33% at a pump power of 30W.

Paper Details

Date Published: 21 February 2020
PDF: 7 pages
Proc. SPIE 11259, Solid State Lasers XXIX: Technology and Devices, 112590W (21 February 2020); doi: 10.1117/12.2546693
Show Author Affiliations
Chris McIntosh, U.S. Army Combat Capabilities Development Command C5ISR (United States)
A. D. Hays, U.S. Army Combat Capabilities Development Command C5ISR (United States)
Stephen R. Chinn, Fibertek, Inc. (United States)
Lew Goldberg, U.S. Army Combat Capabilities Development Command C5ISR (United States)
Jeffrey Leach, U.S. Army Combat Capabilities Development Command C5ISR (United States)


Published in SPIE Proceedings Vol. 11259:
Solid State Lasers XXIX: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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