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Proceedings Paper

Versatile fs laser-written glass chip lasers
Author(s): D. G. Lancaster; S. Gross; A. Fuerbach; H. Ebendorff Heidepriem; T. M. Monro; M. J. Withford
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Paper Abstract

We report laser-written chip lasers with potential to be a platform planar technology versatile enough to cover the visible through to the mid-infrared spectral region. By femtosecond laser direct-writing a thulium doped fluoride based glass host (ZBLAN), we have demonstrated a 151% quantum efficiency λ=1.9 μm laser with a close to diffraction limited beam quality (M2~ 1.12 ± 0.08) with 225 nm of continuous tunability in a device that can be rapidly fabricated by singlestep optical processing. The 9 mm long planar chip developed for concept demonstration contains fifteen large modearea waveguides that can operate in semi-monolithic or external cavity laser configurations. This chip laser has achieved the highest quantum efficiency from a planar glass waveguide laser. The depressed cladding geometry supports the largest fundamental modes reported for a rare-earth doped waveguide laser thereby favouring high peak-power operation which is demonstrated by achieving 1.9 kW peak-power pulses when Q-switched.

Paper Details

Date Published: 6 March 2013
PDF: 8 pages
Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 859907 (6 March 2013); doi: 10.1117/12.2012519
Show Author Affiliations
D. G. Lancaster, The Univ. of Adelaide (Australia)
S. Gross, Macquarie Univ. (Australia)
A. Fuerbach, Macquarie Univ. (Australia)
H. Ebendorff Heidepriem, The Univ. of Adelaide (Australia)
T. M. Monro, The Univ. of Adelaide (Australia)
M. J. Withford, Macquarie Univ. (Australia)

Published in SPIE Proceedings Vol. 8599:
Solid State Lasers XXII: Technology and Devices
W. Andrew Clarkson; Ramesh Shori, Editor(s)

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