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arXiv · 2209.10472

PHz scale spectral broadening and few-cycle compression of Yb:KGW laser pulses in a pressurized, gas-filled hollow-core fiber

Z. Pi·H. Y. Kim·E. Goulielmakis
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Abstract

We demonstrate efficient generation of coherent super-octave pulses via a single-stage spectral broadening of a Yb:KGW laser in a single, pressurized, Ne-filled, hollow-core fiber capillary. Emerging pulses spectrally spanning over more than $\sim$1 PHz (250 nm- 1600 nm) at a dynamic range of $\sim$60 dB, and an excellent beam quality open the door to combining Yb:KGW lasers with modern light field synthesis techniques. Compression of a fraction of the generated supercontinuum to intense (8 fs, $\sim$2.4 cycle, $\sim$650 $\mu$J) pulses allows convenient use of these novel laser sources in strong-field physics and attosecond science.

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Z. Pi, H. Y. Kim, E. Goulielmakis. 2022-09-21. PHz scale spectral broadening and few-cycle compression of Yb:KGW laser pulses in a pressurized, gas-filled hollow-core fiber. https://doi.org/10.1364/ol.474872

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