We present the nonlinear compression of pulses in the 2 µm wavelength region using two different approaches. Pulses shorter than 30 fs with up to 26.5 W of average power have been achieved exploiting soliton compression in a solid-core fiber. In this experiment 24 MW of peak power have been demonstrated inside of the fiber. On the other hand, nonlinear compression in a gas-filled Kagome-type hollow-core photonic crystal fiber allowed for pulse peak powers in excess of 200 MW.

© 2015 Optical Society of America

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