Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany.
Opt Lett. 2011 Feb 1;36(3):313-5. doi: 10.1364/OL.36.000313.
An optical parametric chirped-pulse amplification system delivering pulses with more than 12 GW peak power is presented. Compression to sub-5 fs, 87 μJ and 5.4 fs, 100 μJ is realized at the 30 kHz repetition rate. A high-energy fiber chirped-pulse amplification system operating at 1 mJ pulse energy and nearly transform-limited pulses is used to achieve ultrabroadband amplification in two 2mm beta-barium borate crystals. Precise pulse shaping is used to compress the pulses to a few percentages of their transform limit. Assuming diffraction limited focusing (d<2 μm), peak intensities as high as 10(18) W/cm(2) can be reached.
介绍了一种可提供超过 12GW 峰值功率脉冲的光参量啁啾脉冲放大系统。在 30kHz 重复率下，实现了压缩到亚 5fs、87μJ 和 5.4fs、100μJ 的脉冲。采用工作在 1mJ 脉冲能量和近变换限制脉冲的高能光纤啁啾脉冲放大系统，在两个 2mmβ-硼酸钡晶体中实现了超宽带放大。采用精确的脉冲整形将脉冲压缩到其变换极限的几个百分点。假设衍射极限聚焦（d<2μm），可以达到高达 10(18)W/cm(2)的峰值强度。
