Efficient Compound-Cavity Eye-Safe KTP OPO at 1.57 μm Pumped by an Electro-Optic Q-Switched Nd:YAG Laser
Efficient Compound-Cavity Eye-Safe KTP OPO at 1.57 μm Pumped by an Electro-Optic Q-Switched Nd:YAG Laser
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DOI：
10.1088/0256-307x/26/6/064210
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发表时间：
2009-06
影响因子：
3.5
通讯作者：
Zhong Kai;Wang Yuye;Xu Degang;Geng You-fu;Wang Jing-Li;Wang Peng;Yao Jian-quan
中科院分区：
文献类型：
--
作者：
Zhong Kai;Wang Yuye;Xu Degang;Geng You-fu;Wang Jing-Li;Wang Peng;Yao Jian-quan
介绍了一种基于非临界相位匹配KTP晶体的高效高能人眼安全光学参量振荡器（OPO）。KTP光参量振荡器采用准连续二极管侧面抽运的电光调Q Nd：YAG激光器抽运，采用复合腔结构。信号波长1.57 μm处的最大输出能量为66.5 mJ，相应的电光转换效率为4.47%，光光转换效率为12.1%。脉冲宽度（FWHM）约为3.6ns，峰值功率为18.5MW。输出能量对重复频率不敏感，稳定性良好。
An efficient high-energy eye-safe optical parametric oscillator (OPO) based on a type-II non-critically phase-matched KTP crystal is demonstrated. The KTP OPO is pumped by a quasi-cw diode side-pumped electro-optic Q-switched Nd:YAG laser in a compound-cavity configuration. The maximum output energy of the signal wavelength at 1.57 μm is 66.5 mJ, corresponding to an electrical-to-optical conversion efficiency of 4.47% and an optical-to-optical conversion efficiency of 12.1%. The pulse width (FWHM) is about 3.6ns with a peak power of 18.5 MW. The output energy is insensitive to repetition rate and demonstrates good stability.