摘要
为满足一些武器装备对激光系统小型化及输出激光光斑均匀性较高的要求,通过设计LD侧面对称半环状泵浦的泵浦方式,使得输出的激光光斑形状基本为圆形,激光光斑的均匀性有了较大提高。采用凹面全反射镜补偿热效应以及设计紧凑激光谐振腔型,在注入电流60 A、频率为20 Hz时,得到平均单脉冲能量为96 mJ(脉冲能量波动小于6%)、脉宽为10 ns、发散角为3 mrad的近似圆形激光输出,激光系统在高温50℃时工作稳定。
The LD side-pumping structure was designed to meet the requirement of miniaturization and spot uniformity of the laser system for weapon systems. The compact laser resonator was designed. In this design, the thermal effect is compensated by the total reflection concave mirror. The laser output, whose average single pulse energy is 96 mJ （energy fluctuation 〈6%）, pulse width is 10 ns and divergence angle is 3 mrad was obtained as the current is 60 A and the frequency is 20 Hz. The laser system can still work stably when the temperature rise to 50℃.
出处
《应用光学》
CAS
CSCD
北大核心
2009年第4期703-706,共4页
Journal of Applied Optics
