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

Autor: Silletti, Laura, Wahid, Ammar Bin, Escoto, Esmerando, Balla, Prannay, Rajhans, Supriya, Horn, Katinka, Winkelmann, Lutz, Wanie, Vincent, Trabattoni, Andrea, Heyl, Christoph M., Calegari, Francesca
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1364/OL.476846
Popis: 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.
Databáze: arXiv