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Proceedings Paper

The influence of KTP’s thermal effects on the stabilization of a high-power diode-side-pumped all-solid-state QCW intracavity-frequency-doubled Nd:YAG laser and the compensating methods
Author(s): Rui Zhou; Degang Xu; Wuqi Wen; Xin Ding; Qiang Zhang; Peng Wang; Jianquan Yao
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Paper Abstract

The stabilization and modes of a high-power intracavity frequency-doubled Nd:YAG laser are numerically analyzed, the great influence of frequency-doubler’s thermal lensing on the stabilization and modes of this laser is demonstrated, and a compensating method is developed. A high-power QCW 532 nm green laser has been fabricated in the experiment, with a KTP crystal (θ=90°, φ=24.7°, 6×6×9.2mm, cut for high-temperature (80°C) application) as frequency-doubler. With the KTP crystal warmed up to 48.8°C and resonator parameters adjusted optimum according to the calculated thermal focal length of KTP crystal, a maximum 110W green laser is generated at 10.6kHz repetition rate, and its pulse width is 142ns, instability 2%, and optical-to-optical efficiency 11%.

Paper Details

Date Published: 26 January 2005
PDF: 8 pages
Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.575005
Show Author Affiliations
Rui Zhou, Tianjin Univ. (China)
Degang Xu, Tianjin Univ. (China)
Wuqi Wen, Tianjin Univ. (China)
Xin Ding, Tianjin Univ. (China)
Qiang Zhang, Tianjin Univ. (China)
Peng Wang, Tianjin Univ. (China)
Jianquan Yao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 5627:
High-Power Lasers and Applications III
Dianyuan Fan; Ken-ichi Ueda; Jongmin Lee, Editor(s)

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