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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 24 — Nov. 24, 2008
  • pp: 19419–19426

Pulsed blue laser at 491nm by Nonlinear Cavity Dumping

Emilie Herault, Mickaël Lelek, François Balembois, and Patrick Georges  »View Author Affiliations

Optics Express, Vol. 16, Issue 24, pp. 19419-19426 (2008)

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A nonlinear cavity dumping process is applied for the first time to generate kW peak power pulses at 491 nm. The system is based on efficient sum-frequency mixing of 1063 nm and 912 nm radiations in a BiBO nonlinear crystal placed inside a Nd:GdVO4 laser oscillator with a high finesse cavity at 912 nm. The nonlinear cavity dumping process is triggered by high peak power nanosecond pulses from a 1063 nm Q-switched Nd:GdVO4 laser operating at 10 kHz. To reach the kW range at 491 nm a key point is to Q-switch the high finesse 912 nm cavity instead of continuous wave operation. Thus, the peak power (9.3 kW for 3 ns pulses) and the average power (280 mW) obtained at 491 nm are 14 times higher than the one obtained when the 912 nm laser operated in continuous wave.

© 2008 Optical Society of America

OCIS Codes
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.7300) Lasers and laser optics : Visible lasers

ToC Category:
Nonlinear Optics

Original Manuscript: July 1, 2008
Revised Manuscript: October 13, 2008
Manuscript Accepted: October 15, 2008
Published: November 10, 2008

Emilie Herault, Mickaël Lelek, François Balembois, and Patrick Georges, "Pulsed blue laser at 491nm by nonlinear cavity dumping," Opt. Express 16, 19419-19426 (2008)

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