摘要
为了获得高效率3μm～5μm中红外激光输出,利用电光调Q晶体RbTiOPO4(RTP),通过高重复频率驱动调Q同步技术和LD侧面泵浦技术,获得高重频窄脉宽1.06μm激光输出,泵浦非线性晶体周期极化钽酸锂(PPLT)进行频率变换,实现高功率3μm～5μm中红外激光输出。在电源输入电流20A、调Q驱动频率10kHz的条件下,获得15W的1.06μm激光。利用该1.06μm激光泵浦PPLT获得最高功率为2.6W的3.9μm中红外激光,1.06μm到3.9μm的转化效率为17.3%。实验结果表明:通过高重频电光调Q技术和LD侧面泵浦技术,可以实现高重频窄脉宽1.06μm偏振光输出,泵浦PPLT可获得高功率高效率3.9μm中红外激光输出。
To acquire high efficiency middle wave infrared（MWlR） laser of 3 μm-5μm, the high repetition rate driving electro-optic Q-switched synchronization technology and LD side-pumped technology were used to get high repetition rate laser output with 1. 06 μm narrow width. Periodically poled lithium tantalate （PPLT） was pumped to achieve high-power MWIR laser output of 3μm-5μm. As the input current was 20 A and the Q-switched frequency was 10kHz, the 1.06 μm laser with 15 W power was obtained. After pumping PPLT by the laser, the 3.9 μm laser with maximum power of 2.6 W was got. The conversion efficiency from 1.06 μm to 3.9μm was 17.3%. Experiment results indicate that the high repetition rate driving e- lectro-optical Q-switched technology and LD side-pumped technology can be used to obtain high-repetition narrow-width 1. 06 μm polarized laser, and pumping PPLT can obtain high- power high-efficiency 3.9 μm MWIR laser.
出处
《应用光学》
CAS
CSCD
北大核心
2013年第2期355-358,共4页
Journal of Applied Optics
关键词
电光调Q
光参量振荡器
中红外
electro-optical Q-switched
optical parametric oscillator
MWIR
