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Proceedings Paper

Design of a new technique for alleviating thermal dephasing of nonlinear optical crystal
Author(s): Y. K. Yap; Kyoichi Deki; Y. Kagebayashi; Masahiro Horiguchi; Yuzo Mori; Toru Sasaki
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Paper Abstract

A novel mechanism to alleviate the thermal dephasing of nonlinear optical crystal was developed. We named it temperature-profile compensation as defined from the in-situ temperature-profile measurement. Based on the concept of this mechanism, design on a technique for 3D temperature- profile compensation was demonstrated. By applying this technique on a CsLi B6O10 crystal, 10.6-W of 266-nm output power was obtained at 100-Hz. This result is 2.3-fold of that without alleviation. The conversion efficiency of 52 percent from the green is also more effective than the best result optimized at room temperature. Based on the similar concept, 1D temperature-profile compensation is also discussed for cases when the laser beam diameter reduced below approximately 2 mm. This is appropriate for frequency conversion of cw and diode-pumped kHz lasers. The design for 1D temperature-profile compensation can be very simple without involving any gas cooling.

Paper Details

Date Published: 23 July 1999
PDF: 4 pages
Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); doi: 10.1117/12.354198
Show Author Affiliations
Y. K. Yap, Osaka Univ. (Japan)
Kyoichi Deki, USHIO Inc. (Japan)
Y. Kagebayashi, USHIO Inc. (Japan)
Masahiro Horiguchi, USHIO Inc. (Japan)
Yuzo Mori, Osaka Univ. (Japan)
Toru Sasaki, Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 3492:
Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion
W. Howard Lowdermilk, Editor(s)

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