Generation of 15W femtosecond laser pulse from a Kerr-lens mode-locked Yb:YAG thin-disk oscillator

Peng Yingnan¹, Zhang Jinwei², Wang Zhaohua², Zhu Jiangfeng¹, Li Dehua², Wei Zhiyi^{1, 2, †,}

(a) Measured autocorrelation trace (black) and sech²-fitting (red) from the KLM oscillator. (b) The corresponding optical spectrum.