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Kilowatt-average-power compression of millijoule pulses in a gas-filled multi-pass cell

: Grebing, C.; Müller, M.; Buldt, J.; Stark, H.; Limpert, J.

Fulltext ()

Optics Letters 45 (2020), No.22, pp.6250-6253
ISSN: 0146-9592
ISSN: 1539-4794
Journal Article, Electronic Publication
Fraunhofer IOF ()
average power; compression efficiency; laser system; Millijoule pulse; multipass cell

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 spatiospectral couplings or beam quality loss.