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Proceedings Paper

High efficiency gallium nitride laser diode pumped CW ruby laser
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Paper Abstract

The design and performance of a laser diode pumped ruby laser is reported. The laser consists of a 5 mm long 0.05% doped ruby crystal placed within a hemispherical laser resonator. A single mode gallium nitride laser diode, operating at 405 nm provided up to 320 mW of pump power. Beam shaping optics were used to circularize the pump beam and a 150 mm focal length lens produced a ~20 μm waist in the crystal. The laser produced up to 44 mW of output power with a slope efficiency of 17%.

Paper Details

Date Published: 21 February 2020
PDF: 5 pages
Proc. SPIE 11259, Solid State Lasers XXIX: Technology and Devices, 112591P (21 February 2020); doi: 10.1117/12.2545176
Show Author Affiliations
William F. Krupke, WFK Lasers, LLC (United States)
Jason Zweiback, Triangulum Technilogies, LLC (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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