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A Solid State Ultraviolet Lasers Based on Cerium-Doped LiCaAIF(sub 6) Crystal ResonatorWe report the first demonstration of a UV laser using a high-Q whispering gallery mode (WGM) resonator of Ce+: LiCaAlF6. We show that WGM resonators from LiCaAlF6 can achieve a Q of 2.6 x 10(sup 7) 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 10(sup 9) W/m(sup 2) 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.
Document ID
20150007769
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Yu, Nan
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Le, Thanh
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schowalter, Steven J.
(California Univ. Los Angeles, CA, United States)
Rellergert, Wade
(California Univ. Los Angeles, CA, United States)
Jeet, Justin
(California Univ. Los Angeles, CA, United States)
Lin, Guoping
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hudson, Eric
(California Univ. Los Angeles, CA, United States)
Date Acquired
May 8, 2015
Publication Date
March 1, 2012
Subject Category
Lasers And Masers
Meeting Information
Meeting: SPIE Photonics West
Location: San Francisco, CA
Country: United States
Start Date: February 2, 2013
End Date: February 7, 2013
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
Whispering Gallery Mode Resonators
Ultraviolet Lasers

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