摘要
搭建了一套氙灯抽运的有源反射镜钕玻璃激光放大器系统。实验研究了有源反射镜钕玻璃激光放大器的增益特性及能量提取。钕玻璃几何尺寸为380mm×160mm×30mm,掺杂浓度为2.2%(质量分数)。充电电压为23kV时,实验测得系统的小信号增益系数为0.056cm-1,储能效率为2.0%。充电电压为22kV时,输出激光光斑尺寸为126mm×126mm,脉冲宽度为5ns;预放注入能量为6.67J时,激光放大系统获得最大为349J的能量输出。系统静态波前峰谷(PV)值为8.38λ。
The structure of active mirror Nd…glass laser amplifier is presented,which is pumped by Xe-lamps.The gain characteristics and energy extraction of the active mirror Nd…glass laser amplifier are experimentally studied.The size of Nd…glass is 380 mm×160 mm×30 mm,and the doping concentration of Nd：glass is 2.2%（mass fraction）.Experimental results show that when the charging voltage is 23 kV,the small signal gain coefficient of the system is 0.056 cm^-1,and the energy storage efficiency is 2.0%.The spot size of the output laser is 126 mm×126 mm and the pulse width is 5 ns when the charging voltage is 22 kV.The laser amplifier obtains the maximum output energy of 349 Jwhen the injected energy is 6.67 J.The peak to valley（PV）value of the static wavefront of the system is 8.38λ.
作者
刘晶
李磊
陈汝风
施翔春
刘秋菊
杨中国
王建磊
Liu Jing;Li Lei;Chen Rufeng;Shi Xiangchun;Liu Qiuju;Yang Zhongguo;Wang Jianlei(Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;University of Chinese Academy of Sciences, Beijing 100049, China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2018年第5期1-6,共6页
Chinese Journal of Lasers
