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arXiv · 2108.06244

Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power

G. Barbiero·H. Wang·M. Graßl·S. Gröbmeyer·D. Kimbaras·M. Neuhaus·V. Pervak·T. Nubbemeyer·H. Fattahi·M. F. Kling
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Abstract

We demonstrate an efficient hybrid-scheme for nonlinear pulse compression of high-power thin-disk oscillator pulses to the sub-10 fs regime. The output of a home-built, 16 MHz, 84 W, 220 fs Yb:YAG thin-disk oscillator at 1030 nm is first compressed to 17 fs in two nonlinear multipass cells. In a third stage, based on multiple thin sapphire plates, further compression to 8.5 fs with 55 W output power and an overall optical efficiency of 65% is achieved. By sending the 2.5-cycle pulses into a lithium iodate crystal, we were able to generate ultra-broadband mid-infrared pulses covering the spectral range 2.4-8 $\mu$m.

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G. Barbiero, H. Wang, M. Graßl, S. Gröbmeyer, D. Kimbaras, M. Neuhaus, V. Pervak, T. Nubbemeyer, H. Fattahi, M. F. Kling. 2021-08-13. Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power. https://doi.org/10.1364/ol.440303

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