期刊
NEW JOURNAL OF PHYSICS
卷 17, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/17/5/053020
关键词
optical parametric chirped-pulse amplification (OPCPA); free-electron lasers (FEL); high-gain harmonic generation (HGHG)
资金
- Photon Science department of Deutsches Elektronensynchrotron DESY in Hamburg
- Helmholtz-Institut Jena
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, 112W(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 thisOPCPA 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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