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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 5 — Mar. 1, 2014
  • pp: 1306–1309

Tunable continuous-wave deep-ultraviolet laser based on Ce:LiCAF

Barbara Wellmann, David J. Spence, and David W. Coutts  »View Author Affiliations


Optics Letters, Vol. 39, Issue 5, pp. 1306-1309 (2014)
http://dx.doi.org/10.1364/OL.39.001306


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Abstract

We demonstrate chopped-cw lasing in a Ce:LiCAF oscillator directly generating deep-UV light around 290 nm. The cw output was achieved by asynchronous pumping of a Ce:LiCAF oscillator by a mode-locked frequency quadrupled Nd:YVO4 laser that generates 23 ps pulses of 266 nm light at a repetition rate of 80 MHz. The pump laser was chopped with 8.3% duty cycle to minimize thermal effects in the frequency quadrupling stage. The maximum output power achieved was 384 mW when pumped with 3.3 W of pulsed 266 nm light, with a slope efficiency of 33%. The laser output was tunable from 286 to 295 nm with the potential to be broadened over the full gain bandwidth of Ce:LiCAF from 280 to 315 nm.

© 2014 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(140.3610) Lasers and laser optics : Lasers, ultraviolet

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 26, 2013
Revised Manuscript: January 23, 2014
Manuscript Accepted: January 23, 2014
Published: February 27, 2014

Citation
Barbara Wellmann, David J. Spence, and David W. Coutts, "Tunable continuous-wave deep-ultraviolet laser based on Ce:LiCAF," Opt. Lett. 39, 1306-1309 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-5-1306

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