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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 13 — Jun. 22, 2009
  • pp: 10648–10658

Stable, continuous-wave, intracavity, optical parametric oscillator pumped by a semiconductor disk laser (VECSEL).

D. J. M. Stothard, J-M. Hopkins, D. Burns, and M. H. Dunn  »View Author Affiliations

Optics Express, Vol. 17, Issue 13, pp. 10648-10658 (2009)

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We report relaxation oscillation free, true continuous-wave operation of a singly-resonant, intracavity optical parametric oscillator (OPO) based upon periodically-poled, MgO-doped LiNbO3 and pumped internal to the cavity of a compact, optically-excited semiconductor disk laser (or VECSEL). The very short upper-laser-state lifetime of this laser gain medium, coupled with the enhancing effect of the high-finesse pump laser cavity in which the OPO is located, enables a low threshold, high efficiency intracavity device to be operated free of relaxation oscillations in continuous-wave mode. By optimizing for low-power operation, parametric threshold was achieved at a diode-laser power of only 1.4W. At 8.5W of diode-laser power, 205mW of idler power was extracted, indicating a total down-converted power of 1.25W, and hence a down-conversion efficiency of 83%.

© 2009 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(140.7260) Lasers and laser optics : Vertical cavity surface emitting lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: April 30, 2009
Revised Manuscript: May 29, 2009
Manuscript Accepted: June 2, 2009
Published: June 10, 2009

D. J. Stothard, J-M. Hopkins, D. Burns, and M. H. Dunn, "Stable, continuous-wave, intracavity, optical parametric oscillator pumped by a semiconductor disk laser (VECSEL).," Opt. Express 17, 10648-10658 (2009)

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