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Proceedings Paper

LD-pumped Q-CW Nd:YAG/KTP red laser
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Paper Abstract

High-power red laser are of great interest in the fields of medical application, laser display and also as a pumping source for tunable lasers such as Cr:LiSAF. This letter reports the generation of a 12W Q-CW red laser beam by intracavity frequency-doubling of a Nd:YAG laser operating at 1.3μm with a KTP crystal. A laser module that consisting of a Nd:YAG rod side-pumped by thirty 20W LDs of a triangle radial pump geometry, a acousto-optic Q switch and a KTP crystal were used in the experiment. Because the efficiency of SHG is sensitive to the type II phase-matching angles of KTP, we calculate the value of phase-matching angles according to several of Sellemier equations of KTP, and modify the phase-matching angles to θ=59.9° and φ=0° by experiment. The maximum average power of 12W of red laser is achieved at 10KHz when the pump power of LDs is about 470W.

Paper Details

Date Published: 26 January 2005
PDF: 4 pages
Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.574918
Show Author Affiliations
Wuqi Wen, Tianjin Univ. (China)
Xin Ding, Tianjin Univ. (China)
Zhi-qiang Cai, Tianjin Univ. (China)
Jianing Zhou, Tianjin Univ. (China)
Lei Zou, Tianjin Univ. (China)
Meng Zhu, Tianjin Univ. (China)
Yi-zhong Yu, Tianjin Univ. (China)
Peng Wang, Tianjin Univ. (China)
Jian-quan 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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