An optical parametric chirped-pulse amplifier for seeding high repetition rate free-electron lasers

Autor: H Höppner, A Hage, T Tanikawa, M Schulz, R Riedel, U Teubner, M J Prandolini, B Faatz, F Tavella
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: New Journal of Physics, Vol 17, Iss 5, p 053020 (2015)
Druh dokumentu: article
ISSN: 1367-2630
DOI: 10.1088/1367-2630/17/5/053020
Popis: High repetition rate free-electron lasers (FEL), producing highly intense extreme ultraviolet and x-ray pulses, require new high power tunable femtosecond lasers for FEL seeding and FEL pump-probe experiments. A tunable, 112 W (burst mode) optical parametric chirped-pulse amplifier (OPCPA) is demonstrated with center frequencies ranging from 720–900 nm, pulse energies up to 1.12 mJ and a pulse duration of 30 fs at a repetition rate of 100 kHz. Since the power scalability of this OPCPA is limited by the OPCPA-pump amplifier, we also demonstrate a 6.7–13.7 kW (burst mode) thin-disk OPCPA-pump amplifier, increasing the possible OPCPA output power to many hundreds of watts. Furthermore, third and fourth harmonic generation experiments are performed and the results are used to simulate a seeded FEL with high-gain harmonic generation.
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