Erlangen 2018 – wissenschaftliches Programm
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K: Fachverband Kurzzeit- und angewandte Laserphysik
K 6: Poster
K 6.8: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Orangerie
Soliton-effect self-compressed single-cycle 9.6 W mid-IR pulses from a OPCPA at 3.25 μm and 160 kHz — •Alexey Ermolov2, Ugaitz Elu1, Matthias Baudisch1, Hugo Pires1, Francesco Tani2, Michael H. Frosz2, Felix Köttig2, Philip St.J. Russell2, and Jens Biegert1,3 — 1ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain — 2Max Planck Institute for the Science of Light, Staudtstraße 2, 91058 Erlangen, Germany — 3ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
Gas-filled hollow-core photonic crystal fiber (HC-PCF) has been successfully used, over a broad range of laser wavelengths, for compressing laser pulses in the micro-Joule energy range down to single cycle durations. Here we report compression, in a gas-filled HC-PCF, of pulses from a mid-IR optical parametric chirped pulse amplifier. The results out-perform previous systems by more than an order of magnitude, achieving peak powers of 3.9 GW at a 160 kHz repetition rate with intrinsically carrier envelope phase-stable pulses near the single-cycle limit. The 97 fs pulses at the laser output were compressed down to 14.5 fs (corresponding to 1.35 cycles) using soliton dynamics in a HC-PCF filled with argon. The compression scheme was remarkably efficient, introducing only 20% loss, thereby yielding 60 μJ output energy pulses at 3.3 μm with 9.6 W average power. This system presents a significant step forward in the generation of coherent hard x-rays and subsequent access to the zeptosecond regime of light-matter interactions.