Palmer Guido, Schultze Marcel, Emons Moritz, Lindemann Anna Lena, Pospiech Matthias, Steingrube Daniel, Lederer Max, Morgner Uwe
Institute of Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany.
Opt Express. 2010 Aug 30;18(18):19095-100. doi: 10.1364/OE.18.019095.
We report on substantial pulse energy increase in Yb:KYW femtosecond laser oscillators by utilizing multiple laser crystals for an enhanced net-gain at higher pump power. The two-crystal oscillator generates pulse energies of 7 µJ at 1 MHz repetition rate which is, to our knowledge the highest energy ever reported from an Yb-doped tungstate fs-laser oscillator. The external pulse compression yields a pulse duration of 416 fs with a peak power of 12 MW being enough for stable white light generation in YAG.
我们报告了通过使用多个激光晶体以在更高泵浦功率下提高净增益，从而使镱钾钇钨（Yb:KYW）飞秒激光振荡器的脉冲能量大幅增加。双晶体振荡器在1 MHz重复频率下产生7 µJ的脉冲能量，据我们所知，这是掺镱钨酸盐飞秒激光振荡器所报道的最高能量。外部脉冲压缩产生了416 fs的脉冲持续时间，峰值功率为12 MW，足以在YAG中稳定产生白光。
