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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 15 — Jul. 21, 2008
  • pp: 11294–11299

Thermal effects in high-power CW second harmonic generation in Mg-doped stoichiometric lithium tantalate

Sergey V. Tovstonog, Sunao Kurimura, Ikue Suzuki, Kohei Takeno, Shigenori Moriwaki, Noriaki Ohmae, Norikatsu Mio, and Toshio Katagai  »View Author Affiliations


Optics Express, Vol. 16, Issue 15, pp. 11294-11299 (2008)
http://dx.doi.org/10.1364/OE.16.011294


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Abstract

We investigated thermal behaviors of single-pass second-harmonic generation of continuous wave green radiation with high efficiency by quasi-phase matching in periodically poled Mg-doped stoichiometric lithium tantalate (PPMgSLT). Heat generation turned out to be directly related to the green light absorption in the material. Strong relation between an upper limit of the second harmonic power and confocal parameter was found. Single-pass second-harmonic generation of 16.1 W green power was achieved with 17.6% efficiency in Mg:SLT at room temperature.

© 2008 Optical Society of America

OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects
(190.0190) Nonlinear optics : Nonlinear optics
(230.0230) Optical devices : Optical devices
(140.3515) Lasers and laser optics : Lasers, frequency doubled

ToC Category:
Nonlinear Optics

History
Original Manuscript: May 15, 2008
Revised Manuscript: June 16, 2008
Manuscript Accepted: June 17, 2008
Published: July 11, 2008

Citation
Sergey V. Tovstonog, Sunao Kurimura, Ikue Suzuki, Kohei Takeno, Shigenori Moriwaki, Noriaki Ohmae, Norikatsu Mio, and Toshio Katagai, "Thermal effects in high-power CW second harmonic generation in Mg-doped stoichiometric lithium tantalate," Opt. Express 16, 11294-11299 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-15-11294


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References

  1. S. V. Tovstonog, S. Kurimura, and K. Kitamura, "High power continuous-wave green light generation by quasiphase matching in Mg stoichiometric lithium tantalate," Appl. Phys. Lett. 90, 051115-1-051115-3 (2007). [CrossRef]
  2. N. Yu, S. Kurimura, Y. Nomura, and K. Kitamura, "Stable High-Power Green Light Generation with Thermally Conductive Periodically Poled Stoichiometric Lithium Tantalate," Jpn. J. Appl. Phys. 43, L1265-L1267 (2004). [CrossRef]
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  6. K. Takeno, T. Ozeki, S. Morowaki, and N. Mio, "100 W, single-frequency operation of an injection-locked Nd:YAG laser," Opt. Lett. 30, 2110-2112 (2005). [CrossRef] [PubMed]
  7. O. A. Louchev, N. E. Yu, S. Kurimura, and K. Kitamura, "Nanosecond pulsed laser energy and thermal field evolution during second harmonic generation in periodically poled LiNbO3 crystals," J. Appl. Phys. 98, 113103-1-113103-8 (2005). [CrossRef]
  8. O. A. Louchev, N. E. Yu, S. Kurimura, and K. Kitamura, "Thermal inhibition of high-power second-harmonic generation in periodically poled LiNbO3 and LiTaO3 crystals," Appl. Phys. Lett. 87, 131101-1-131101-3 (2005). [CrossRef]

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