Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell
Christian Grebing, Michael M\"uller, Joachim Buldt, Henning Stark,, Jens Limpert
TL;DR
This paper demonstrates efficient post-compression of high-energy laser pulses to produce 1-mJ, 31-fs pulses with 1 kW average power using a gas-filled multi-pass cell, maintaining high beam quality.
Contribution
It introduces a reliable method for high-power pulse compression using a gas-filled multi-pass cell with high efficiency and minimal beam quality degradation.
Findings
Achieved 1-mJ, 31-fs pulses at 1 kW average power.
Compression efficiency of 96%.
No significant spatio-spectral coupling or beam quality loss.
Abstract
We demonstrate the reliable generation of 1-mJ, 31-fs pulses with an average power of 1 kW by post-compression of 200-fs pulses from a coherently combined Yb:fiber laser system in an argon-filled Herriott-type multi-pass cell with an overall compression efficiency of 96%. We also analyze the output beam, revealing essentially no spatio-spectral couplings or beam quality loss.
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