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arXiv · 2209.15335

A dispersion-engineered multi-pass cell for single-stage post compression of an Ytterbium laser

Laura Silletti·Ammar Bin Wahid·Esmerando Escoto·Prannay Balla·Supriya Rajhans·Katinka Horn·Lutz Winkelmann·Vincent Wanie·Andrea Trabattoni·Christoph M. Heyl·Francesca Calegari
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Abstract

Post-compression methods for ultrafast laser pulses typically face challenging limitations including saturation effects and temporal pulse break-up when large compression factors and broad bandwidths are targeted. To overcome these limitations, we exploit direct dispersion control in a gas-filled multi-pass cell, enabling for the first time single-stage post-compression of 150 fs pulses and up to 250 uJ pulse energy from an Ytterbium (Yb) fiber laser down to sub-20 fs. Dispersion-engineered dielectric cavity mirrors are used to achieve nonlinear spectral broadening dominated by self-phase-modulation over large compression factors and bandwidths at 98% throughput. Our method opens a route towards single-stage post-compression of Yb lasers into the few-cycle regime.

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Laura Silletti, Ammar Bin Wahid, Esmerando Escoto, Prannay Balla, Supriya Rajhans, Katinka Horn, Lutz Winkelmann, Vincent Wanie, Andrea Trabattoni, Christoph M. Heyl, Francesca Calegari. 2022-09-30. A dispersion-engineered multi-pass cell for single-stage post compression of an Ytterbium laser. https://doi.org/10.1364/ol.476846

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