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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 9 — Mar. 20, 2012
  • pp: 1382–1386

Intracavity second-harmonic generation at 320 nm of an actively Q-switched Pr:LiYF4 laser

Junichiro Kojou, Yoichiro Watanabe, Yosuke Kojima, Hiroyuki Nemoto, and Fumihiko Kannari  »View Author Affiliations


Applied Optics, Vol. 51, Issue 9, pp. 1382-1386 (2012)
http://dx.doi.org/10.1364/AO.51.001382


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Abstract

We demonstrate pulse laser operation of a Pr:LiYF4 laser pumped by InGaN laser diodes (444 nm) using an acousto-optic modulator. We obtained a maximum laser peak power of 167 W (4μJ/pulse) with a pulse width of 24 ns at an 11 kHz repetition rate for a 63  nm wavelength. Employing an 8 mm long lithium triborate nonlinear crystal in the laser cavity, we obtained a maximum peak power of 55 W (2.7μJ/pulse) at 320 nm, which corresponds to a conversion efficiency of 69% with respect to the fundamental laser energy. The UV laser pulse width was 36 ns.

© 2012 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(140.7300) Lasers and laser optics : Visible lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 30, 2011
Revised Manuscript: January 13, 2012
Manuscript Accepted: January 14, 2012
Published: March 15, 2012

Citation
Junichiro Kojou, Yoichiro Watanabe, Yosuke Kojima, Hiroyuki Nemoto, and Fumihiko Kannari, "Intracavity second-harmonic generation at 320 nm of an actively Q-switched Pr:LiYF4 laser," Appl. Opt. 51, 1382-1386 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-9-1382

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