26 January 2005 LD-pumped Q-CW Nd:YAG/KTP red laser
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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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wuqi Wen, Wuqi Wen, Xin Ding, Xin Ding, Zhi-qiang Cai, Zhi-qiang Cai, Jianing Zhou, Jianing Zhou, Lei Zou, Lei Zou, Meng Zhu, Meng Zhu, Yi-zhong Yu, Yi-zhong Yu, Peng Wang, Peng Wang, Jian-quan Yao, Jian-quan Yao, } "LD-pumped Q-CW Nd:YAG/KTP red laser", Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.574918; https://doi.org/10.1117/12.574918

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