Abstract

Nonlinear pulse compression of ultrashort pulses is an established method for reducing the pulse duration and increasing the pulse peak power beyond the intrinsic limits of a given laser architecture. In this proof-of-principle experiment, we demonstrate nonlinear compression of the pulses emitted by a high-repetition-rate thulium-based fiber CPA system. The initial pulse duration of about 400 fs has been shortened to $<70\mathrm{fs}$ with 19.7 μJ of pulse energy, which corresponds to about 200 MW of pulse peak power.

© 2015 Optical Society of America

High average power nonlinear compression to 4  GW, sub-50  fs pulses at 2  μm wavelength

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Nonlinear pulse compression to 43 W GW-class few-cycle pulses at 2 μm wavelength

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Opt. Lett. 42(20) 4179-4182 (2017)