摘要
根据准相位匹配理论计算了周期极化LiTaO3(PPLT)晶体中0类准相位匹配过程(e+e→e)的增益曲线.在此基础上,使用数百μJ的低抽运能量获得了～106的增益和～10.3%的转换效率,实现了中心波长位于1064nm的基于简并光学啁啾脉冲参量放大(OPCPA)技术的高增益放大,为产生超短超强激光脉冲提供了新的技术手段.实验结果与理论预期基本符合.
The gain curve in periodically poled LiTaO3 crystal （PPLT） was calculated for type 0 （e ＋ e→e） quasi-phase matching （QPM）. A high-gain amplifier centered at 1064 nm based on degenerated optical parametric chirped-pulse amplification was built. The gain of - 10^6 and - 10.3 % conversion efficiency were achieved with low pump energy of several hundreds of μJ. The experimental results are consistent with the simulation.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第5期2709-2713,共5页
Acta Physica Sinica
