中国激光, 2018, 45 (5): 0501004, 网络出版: 2018-05-21
700 mJ紧凑型激光二极管抽运Nd∶YAG主振荡功率放大系统 下载: 678次
700 mJ Compact Nd∶YAG Master-Oscillator Power Amplification System Pumped by Laser Diode
激光器 全固态激光器 高能量 半导体制冷器 激光二极管抽运 主振荡功率放大 lasers solid-state laser high energy thermoelectric cooler laser diode-pumping master-oscillator power amplification
摘要
报道了一种紧凑型激光二极管(LD)侧面抽运的高能量全固态Nd∶YAG主振荡功率放大系统。放大系统整体采用半导体制冷器进行冷却, 实现了激光系统的紧凑化和小型化。主振荡器使用了直径为7 mm、长度为100 mm、掺杂浓度(原子数分数)为1.1%的Nd∶YAG晶体棒, 在10 Hz重复频率下获得最大脉冲能量为350 mJ、脉宽为9.7 ns的激光输出。功率放大级使用直径为7.5 mm、长度为134 mm、掺杂浓度为1.1%的Nd∶YAG晶体棒作为增益介质, 放大后得到了能量为700 mJ、脉宽为10 ns的激光输出。
Abstract
A compact high-energy solid-state Nd∶YAG master-oscillator power amplification system side-pumped by laser diode is presented. We use the thermoelectric cooler in the whole system, and a compact and miniaturized laser system is achieved. A Nd∶YAG crystal rod with diameter of 7 mm, length of 100 mm and doping concentration (atomic number fraction) of 1.1% is used in the master oscillator. We obtain a laser pulse with maximum pulse energy of 350 mJ, pulse width of 9.7 ns under repetition rate of 10 Hz. A Nd∶YAG crystal rod with diameter of 7.5 mm, length of 134 mm and doping concentration of 1.1% is used as gain medium in power amplification stage. Finally, we obtain the laser pulse with energy of 700 mJ and pulse width of 10 ns.
董剑, 刘学胜, 司汉英, 彭超, 曹明真, 何欢, 刘友强, 王智勇. 700 mJ紧凑型激光二极管抽运Nd∶YAG主振荡功率放大系统[J]. 中国激光, 2018, 45(5): 0501004. Dong Jian, Liu Xuesheng, Si Hanying, Peng Chao, Cao Mingzhen, He Huan, Liu Youqiang, Wang Zhiyong. 700 mJ Compact Nd∶YAG Master-Oscillator Power Amplification System Pumped by Laser Diode[J]. Chinese Journal of Lasers, 2018, 45(5): 0501004.