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Proceedings Paper

Er:YGG planar waveguides grown by pulsed laser deposition for LIDAR applications
Author(s): Jacob I. Mackenzie; James A. Grant-Jacob; Stephen Beecher; Haris Riris; Anthony W. Yu; David P. Shepherd; Robert W. Eason
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Paper Abstract

Er:YGG planar waveguide amplifiers (PWAs) are promising candidates to meet the needs of greenhouse-gas differentialabsorption LIDAR applications. We report pulsed–laser-deposition growth of this doped crystal and net-gain performance (internal gain ~2 dB/cm for 0.7-at.% Er-doping) in a 0.9-cm-long uncoated single-pass PWA. Rapid fabrication is also demonstrated with optimized parameters, where crystal growth rates approaching 20 microns/hour have been realized. We compare Er-doping concentrations ranging from 0.5 at.% - 4 at.%, and report on their spectroscopic properties. Furthermore, we show the ability to tailor the deposited crystal properties, controlling the waveguide and gain characteristics. Finally, we discuss the spectroscopy and potential performance of this relatively unstudied material for PWAs in the eye-safe regime.

Paper Details

Date Published: 17 February 2017
PDF: 7 pages
Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100820A (17 February 2017); doi: 10.1117/12.2256972
Show Author Affiliations
Jacob I. Mackenzie, Univ. of Southampton (United Kingdom)
James A. Grant-Jacob, Univ. of Southampton (United Kingdom)
Stephen Beecher, Univ. of Southampton (United Kingdom)
Haris Riris, NASA Goddard Space Flight Ctr. (United States)
Anthony W. Yu, NASA Goddard Space Flight Ctr. (United States)
David P. Shepherd, Univ. of Southampton (United Kingdom)
Robert W. Eason, Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 10082:
Solid State Lasers XXVI: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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