L. Indra, A. Špaček, J. Green, J. Bartoníček, J. Novák, B. Tykalewicz, Jan Eisenschreiber, M. Horáček, J. Naylon, B. Rus
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Development of L2-DUHA laser front-end for near-IR and mid-IR generation at ELI-Beamlines
The L2-DUHA Laser (Dual-beam Ultra-fast High energy OPCPA Amplifier) designed to provide 100 TW-level pulses at 50 Hz is being developed at ELI-beamlines. The front end will provide the seed for 100 TW pulse train and also synchronized multi-mJ, sub 50 fs, 2.2 μm auxiliary output at 2 kHz, both generated via supercontinuum. The near-IR branch centered around 820 nm is amplified in two OPCPA stages and stretched to 1.5 ns. The beam in the mid-IR branch is combined with a 1030 nm beam in DFG to generate a mid-IR beam centered around 2.2 μm, amplified in three OCPA stages and compressed.
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