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基于周期极化LiTaO3晶体的高增益简并啁啾脉冲参量放大

物理学报, 2007, 56(5): 2709-2713.
DOI: 10.7498/aps.56.2709
CSTR: 32037.14.aps.56.2709

High-gain degenerated optical parametric chirped-pulse amplification in periodically poled LiTaO3

Acta Phys. Sin., 2007, 56(5): 2709-2713.
DOI: 10.7498/aps.56.2709
CSTR: 32037.14.aps.56.2709
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  • 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.

     

    Abstract

    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 1064nm based on degenerated optical parametric chirped-pulse amplification was built. The gain of ～106 and ～10.3% conversion efficiency were achieved with low pump energy of several hundreds of μJ. The experimental results are consistent with the simulation.

     

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