High energy and high efficiency 3.4 μm extracavity KTA optical parametric oscillator
High energy and high efficiency 3.4 μm extracavity KTA optical parametric oscillator
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DOI：
10.1002/lapl.201010083
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发表时间：
2011-01-01
影响因子：
1.7
通讯作者：
Zhao, W.
中科院分区：
文献类型：
--
作者：
Sun, Q. B.;Liu, H. J.;Zhao, W.
A high energy and high efficiency extracavity KTiOAsO4 (KTA) optical parametric oscillator (OPO) with excellent stability and beam quality, which is pumped by a Q-switched single-longitudinal-mode Nd:YAG laser, has been demonstrated based on a type II non-critical phase matching (NCPM) KTA crystal. The maximum pulse energy of 10 mJ at 3.467 mu m is obtained with the repetition rate of 10 Hz and pulse width of 2 ns, corresponding to an optical-optical conversion efficiency of 14% from 1.064 mu m to 3.467 mu m. After one hour of investigation, the OPO output stability better than 4.5% rms has been obtained.[GRAPHICS]The output stability of 3.467 mu m (C) 2011 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA
