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Proceedings Paper

Er/Yb glass laser with compact mechanical Q-switch
Author(s): Brian Cole; Nathaniel Hough; Alan Hays; John Nettleton; Lew Goldberg
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Paper Abstract

We describe a compact, side-pumped, Er/Yb glass laser with a low cost mechanical Q-switch. The Q-switch uses a mirror or reflecting prism mounted on a cantilever resonant spring that is driven by a small electromagnetic coil. The demonstrated laser used a 5 mm long Er/Yb glass gain element, and was side-pumped by a 940 nm, 5 mm wide diode bar generating up to 100 W peak power. Target energies of 3mJ have been realized in a near-diffraction limited mode, with pulse widths of 15-25ns, and an optical-to-optical efficiency of greater than 2%. The mechanical Q-switch assembly was fully athermalized via mounting a displacing porro reflector to the cantilever spring, where a 2.5mJ laser was observed to operate with less than 5% variance over -35°C to+60°C.

Paper Details

Date Published: 16 March 2016
PDF: 6 pages
Proc. SPIE 9726, Solid State Lasers XXV: Technology and Devices, 972605 (16 March 2016); doi: 10.1117/12.2213291
Show Author Affiliations
Brian Cole, U.S. Army RDECOM CERDEC NVESD (United States)
Nathaniel Hough, U.S. Army RDECOM CERDEC NVESD (United States)
Alan Hays, U.S. Army RDECOM CERDEC NVESD (United States)
John Nettleton, U.S. Army RDECOM CERDEC NVESD (United States)
Lew Goldberg, U.S. Army RDECOM CERDEC NVESD (United States)


Published in SPIE Proceedings Vol. 9726:
Solid State Lasers XXV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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