We reported a high-power pure Kerr-lens mode-locked Yb:CALYO laser based on the dual-confocal cavity delivering sub-100-fs pulses. The output pulses at 81 MHz have an average power of 10.4 W and the pulse duration of 98 fs, corresponding to the peak power of 1.14 MW. This is, to the best of our knowledge, the highest average power ever reported for a Kerr-lens mode-locked Yb-bulk oscillator. Analysis of the dual-confocal cavity was also conducted, which indicates a way to achieve higher average power. We believe the result described in this Letter may pave a way to develop Kerr-lens mode-locked bulk lasers with much higher average power.

中文翻译：

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10 W规模的Kerr透镜锁模Yb：CALYO激光器，具有不到100-fs的脉冲

我们报道了一种基于双凸腔的高功率纯Kerr透镜锁模Yb：CALYO激光器，可产生100 fs以下的脉冲。81 MHz的输出脉冲的平均功率为10.4 W，脉冲持续时间为98 fs，对应于1.14 MW的峰值功率。据我们所知，这是Kerr透镜锁模Yb体振荡器的最高平均功率。还对双孔腔进行了分析，这表明了一种实现更高平均功率的方法。我们相信，这封信中描述的结果可能为开发具有更高平均功率的Kerr-lens锁模体激光器铺平道路。