摘要
报道了一种基于内循环水冷系统的10 MW级高峰值功率窄脉宽小型化电光调Q Nd∶YAG激光器。采用机电一体内循环水冷结构,有效地减小了激光器体积,整机尺寸为320 mm×150 mm×150 mm。当LD泵浦源能量为800 m J时(注入电流为100 A),获得了137 m J的静态激光输出,光-光转换效率为17.1%;电光调Q后在驱动频率为30 Hz的条件下,获得了100 m J,脉宽9.9 ns的激光输出,光-光转换效率为12.5%,动静比为73%。激光器连续工作1.5 h不稳定度小于3%。
A miniature electro-optical Q-switched Nd ： YAG laser with high peak power of 10 MW and narrow width is presented based on the liquid cooling system of internal recycle. By means of the mechatronics integration and liquid cooling system of internal recycle structure, the volume of the laser can be reduced effectively, and the whole size of that is 320 mm × 150 mm × 150 mm. Static laser output energy of 137 mJ was acquired at a pumping energy ofS00 mJ （ input current is 100 A）, and the optical-optical conversion efficiency is 17.1%. At electro-optical Q-switched repeti- tion of 30 Hz, the laser output energy of 100 mJ, pulse width of 9. 9 ns and optical-optical conversion efficiency of 12. 5% are obtained. The ratio of dynamic state to static case is 73%. The energy instability of the laser is found to be lower than 3% after 1.5 h of continuous operation.
出处
《激光与红外》
CAS
CSCD
北大核心
2016年第1期39-43,共5页
Laser & Infrared
关键词
10
MW
电光调Q
窄脉宽
小型化
10 MW
electro-optical Q-switched
narrow width
miniaturization
