摘要
为得到3～5μm的中红外输出,对非共线泵浦砷酸钛氧钾(KTA)的临界相位匹配(θ=41.4°,φ=0°)光参量振荡器(OPO)进行了理论分析及实验研究。当以电光调Q的Nd∶YAG激光器泵浦KTA-OPO时,对应输出为3.75μm的中红外激光,重复频率为1～25 Hz,最高输出单脉冲闲频光能量≥4.5 mJ。
In order to obtain the 3-5 μm mid-infrared laser output, a non-collinear pump potassium titanyl arsenate critically phase-matched optical parametric oscillator （KTA-OPO）is analyzed theoretically and studied experimentally. When the KTA-OPO is pumped by an electro-optic Q-switched Nd：YAG laser,the repetition rate is 1-25 Hz,the pulse energy of idler output is 5.4 mJ and the wavelength is 3.75μm.
出处
《激光与红外》
CAS
CSCD
北大核心
2011年第12期1319-1322,共4页
Laser & Infrared
关键词
非线性光学
光参量振荡器
临界相位匹配
KTA晶体
nonlinear optics
optical parametric oscillator
critically phase-matched
KTA crystal
