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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 3 — Feb. 1, 2009
  • pp: 262–264

High-efficiency 20–50 kHz mid-infrared orientation-patterned GaAs optical parametric oscillator pumped by a 2 μm holmium laser

C. Kieleck, M. Eichhorn, A. Hirth, D. Faye, and E. Lallier  »View Author Affiliations


Optics Letters, Vol. 34, Issue 3, pp. 262-264 (2009)
http://dx.doi.org/10.1364/OL.34.000262


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Abstract

We report on what are, to our knowledge, the best results obtained with an orientation-patterned GaAs optical parametric oscillator (OPO) pumped by a Q-switched 2 μm Ho:YAG laser. Up to 2.85 W are obtained for 6.1 W of pump power, corresponding to an optical-to-optical conversion efficiency of 46.5% with a threshold of 1 W. Optical damage occurred at a fluence of about 2 J/cm2. The thickness of the crystal limited the pump power. Slope efficiencies are of the same order as those obtained with ZnGeP2 OPOs pumped with the same Ho:YAG laser.

© 2009 Optical Society of America

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

ToC Category:
Nonlinear Optics

History
Original Manuscript: October 21, 2008
Manuscript Accepted: November 23, 2008
Published: January 23, 2009

Citation
C. Kieleck, M. Eichhorn, A. Hirth, D. Faye, and E. Lallier, "High-efficiency 20–50 kHz mid-infrared orientation-patterned GaAs optical parametric oscillator pumped by a 2 μm holmium laser," Opt. Lett. 34, 262-264 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-3-262


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