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Proceedings Paper

A solid state ultraviolet lasers based on cerium-doped LiCaAlF6 crystal resonator
Author(s): Nan Yu; Thanh Le; Steven J. Schowalter; Wade Rellergert; Justin Jeet; Guoping Lin; Eric Hudson
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Paper Abstract

We report the first demonstration of a UV laser using a high-Q whispering gallery mode (WGM) resonator of Ce3+: LiCaAlF6. We show that WGM resonators from LiCaAlF6 can achieve a Q of 2.6 x 107 at UV. We demonstrated a UV laser at 290 nm with a pulsed pump laser at 266 nm. The experiments showed the low pump threshold intensity of 7.5 x 109 W/m2 and slope efficiency of 25%. We have also observed lasing delay dynamics. These results are consistent with our modeling and theoretical estimates, and pave the way for a low threshold cw UV laser using WGM resonator cavity.

Paper Details

Date Published: 22 February 2013
PDF: 9 pages
Proc. SPIE 8600, Laser Resonators, Microresonators, and Beam Control XV, 86000E (22 February 2013); doi: 10.1117/12.2002657
Show Author Affiliations
Nan Yu, Jet Propulsion Lab. (United States)
Thanh Le, Jet Propulsion Lab. (United States)
Steven J. Schowalter, Univ. of California, Los Angeles (United States)
Wade Rellergert, Univ. of California, Los Angeles (United States)
Justin Jeet, Univ. of California, Los Angeles (United States)
Guoping Lin, Jet Propulsion Lab. (United States)
Eric Hudson, Univ. of California, Los Angeles (United States)


Published in SPIE Proceedings Vol. 8600:
Laser Resonators, Microresonators, and Beam Control XV
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio, Editor(s)

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