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

Wuqi Wen; Xin Ding; Zhi-qiang Cai; Jianing Zhou; Lei Zou; Meng Zhu; Yi-zhong Yu; Peng Wang; Jian-quan Yao

doi:10.1117/12.574918

26 January 2005 LD-pumped Q-CW Nd:YAG/KTP red laser

Wuqi Wen, Xin Ding, Zhi-qiang Cai, Jianing Zhou, Lei Zou, Meng Zhu, Yi-zhong Yu, Peng Wang, Jian-quan Yao

Proceedings Volume 5627, High-Power Lasers and Applications III; (2005) https://doi.org/10.1117/12.574918
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Wuqi Wen, Xin Ding, Zhi-qiang Cai, Jianing Zhou, Lei Zou, Meng Zhu, Yi-zhong Yu, Peng Wang, and Jian-quan Yao "LD-pumped Q-CW Nd:YAG/KTP red laser", Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); https://doi.org/10.1117/12.574918

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KEYWORDS

Ferroelectric materials

Crystals

Laser crystals

Nd:YAG lasers

Tunable lasers

Neodymium

High power lasers

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