Experimental and numerical study of direct sub-20fs multi-pass-cell post-compression of up to 4mJ, 80W Yb-based lasers

Abstract In recent years, various methods for laser pulse post-compression have demonstrated their effectiveness. Nonlinear spectral broadening, achieved by coupling an ultrafast pulse into a gas-filled multi-pass cell (MPC), typically enables pulse compression factors exceeding 20, depending on the initial pulse duration. In this work, we report the direct post-compression of four Yb-based commercial laser systems to sub-20 fs durations, with energies up to 4 mJ and initial pulse durations ranging from 320 fs to 450 fs, using argon-filled MPCs. Each MPC was specifically designed to operate at a fixed optimal point for each laser, achieving the shortest possible pulse duration. Numerical simulations reproducing the experimental data highlight the critical influence of the driver pulse’s temporal profile on the shape of the broadened spectra. These simulations are compared with the experimental results, demonstrating strong agreement.

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Publication Details

Journal
Applied Physics B
Published
2025-02-24
DOI
https://doi.org/10.1007/s00340-025-08415-0
Primary Topic
Solid State Laser Technologies
Type
article
Field-Weighted Citation Impact
0.00

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article

Experimental and numerical study of direct sub-20fs multi-pass-cell post-compression of up to 4mJ, 80W Yb-based lasers

T. Auguste, P. Salières, Thierry Ruchon, F. Réau et al.
Applied Physics B
Solid State Laser Technologies
article

Experimental and numerical study of direct sub-20fs multi-pass-cell post-compression of up to 4mJ, 80W Yb-based lasers

T. Auguste, P. Salières, Thierry Ruchon, F. Réau, Romain Cazali, F. Lepetit, Matthieu Guer, David Bresteau, Romain Géneaux, Hugo J. B. Marroux, O. Tcherbakoff, Akansha Tyagi, Jean-François Hergott, Nicolas Lericheux, Pierre Nonnon
article en

Abstract

Abstract In recent years, various methods for laser pulse post-compression have demonstrated their effectiveness. Nonlinear spectral broadening, achieved by coupling an ultrafast pulse into a gas-filled multi-pass cell (MPC), typically enables pulse compression factors exceeding 20, depending on the initial pulse duration. In this work, we report the direct post-compression of four Yb-based commercial laser systems to sub-20 fs durations, with energies up to 4 mJ and initial pulse durations ranging from 320 fs to 450 fs, using argon-filled MPCs. Each MPC was specifically designed to operate at a fixed optimal point for each laser, achieving the shortest possible pulse duration. Numerical simulations reproducing the experimental data highlight the critical influence of the driver pulse’s temporal profile on the shape of the broadened spectra. These simulations are compared with the experimental results, demonstrating strong agreement.

Applied Physics BVol. 131(3)
Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR), Université Paris-Saclay (FR), CEA Paris-Saclay (FR), CY Cergy Paris Université (FR), Laboratoire Interactions, Dynamiques et Lasers (FR)
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Affordable and clean energy
Openalex Percentile: Top 97%
Solid State Laser Technologies
DOIOpen Access PDFOpenAlex
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