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  • Vol. 23, Iss. 13 — Jul. 1, 1998
  • pp: 1016–1018

Alleviation of thermally induced phase mismatch in CsLiB6O10 crystal by means of temperature-profile compensation

Y. K. Yap, K. Deki, N. Kitatochi, Y. Mori, and T. Sasaki  »View Author Affiliations


Optics Letters, Vol. 23, Issue 13, pp. 1016-1018 (1998)
http://dx.doi.org/10.1364/OL.23.001016


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Abstract

A new mechanism was found to alleviate the thermally induced phase mismatch of nonlinear optical crystals. By cooling CsLiB>6O10 at an elevated crystal temperature with gas, we improved laser conversion efficiency from green (532 nm) to UV (266 nm) 2.3 times compared with that without cooling. In situ observation of the temperature profile on the output surface revealed that such cooling initiates a negative temperature profile that compensates for the positive profile generated from laser absorption. A 10.6-W UV output with excellent stability was generated. The optimum crystal length was substantially extended.

© 1998 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(160.4330) Materials : Nonlinear optical materials
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing

Citation
Y. K. Yap, K. Deki, N. Kitatochi, Y. Mori, and T. Sasaki, "Alleviation of thermally induced phase mismatch in CsLiB6O10 crystal by means of temperature-profile compensation," Opt. Lett. 23, 1016-1018 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-13-1016


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References

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