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Conferences > ASSL > 2000 > WB > WB3

Photo-induced damage in GdYCOB and its circumvention

Hiroyuki Furuya, Hiroshi Nakao, Itsunari Yamada, Yongfeng. Ruan, Yoke Khin Yap, Masashi Yoshimura, Yusuke Mori, and Takatomo Sasaki

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Abstract

We have developed GdxY1-xCa4O(BO3)3 (GdYCOB) crystal noncritically phase matchable for third-harmonic generation of a 1064 nm light by type-I mixing (1064 + 532 → 355 nm). However, during high-power operation, degradation of output power and distortion of beam pattern occurred due to photo-induced damages and thermal dephasing. In this paper, we report on nonlinear optical properties and improved the performance of GdYCOB by circumvention of photo-induced damages and thermal dephasing.

© 2000 Optical Society of America

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