Liebetrau Hartmut, Hornung Marco, Keppler Sebastian, Hellwing Marco, Kessler Alexander, Schorcht Frank, Hein Joachim, Kaluza Malte C
Opt Lett. 2016 Jul 1;41(13):3006-9. doi: 10.1364/OL.41.003006.
We demonstrate the generation of 86 fs, 35 mJ, high-contrast laser pulses at 1030 nm with a repetition rate of 1 Hz from a diode-pumped double chirped-pulse amplification setup. The pulses exhibit a spectral bandwidth exceeding 27 nm full width at half-maximum. This could be achieved by using a laser architecture comprising two stages of chirped pulse amplification with a cross-polarized wave generation filter in between, by applying spectral shaping and by increasing the spectral hard-clip of the second stretcher. These are, to the best of our knowledge, the shortest pulses at the mJ level with ultra-high contrast generated with a diode-pumped front end at 1030 nm.
我们展示了从二极管泵浦双啁啾脉冲放大装置中以1 Hz的重复频率产生波长为1030 nm、脉宽86 fs、能量35 mJ的高对比度激光脉冲。这些脉冲的半高全宽光谱带宽超过27 nm。这可以通过采用一种激光架构来实现，该架构包括两级啁啾脉冲放大，中间有一个交叉偏振波产生滤波器，通过应用光谱整形以及增加第二个展宽器的光谱硬限幅。据我们所知，这些是在1030 nm处由二极管泵浦前端产生的mJ量级的具有超高对比度的最短脉冲。
