Spectral shaping of a 5 Hz, multi-joule OPCPA frontend for a 10 PW laser system

0521702 - FZÚ 2020 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Batysta, František - Antipenkov, Roman - Bartoníček, Jan - Vyhlídka, Štěpán - Trojek, Pavel - Borger, T.J. - Kolenda, J. - Kissinger, A. - Green, Jonathan T. - Kananavičius, R. - Cheriaux, G. - Jarboe, J.A. - Bruce, S. - Hubáček, Jan - Friedman, G. - Beutlich, E. - Malato, C. - Naylon, Jack A. - Hidinger, D. - Gaul, E. - Kramer, Daniel - Donovan, M. - Ditmire, T. - Rus, Bedřich
Spectral shaping of a 5 Hz, multi-joule OPCPA frontend for a 10 PW laser system.
Short-Pulse High-Energy Lasers and Ultrafast Optical Technologies. Bellingham: SPIE, 2019 - (Bakule, P.; Haefner, C.), Roč. 11034 (2019), s. 1-7, č. článku 110340C. Proceedings of SPIE, 11034. ISBN 978-151062734-5. ISSN 0277-786X.
[Short-Pulse High-Energy Lasers and Ultrafast Optical Technologies 2019. Prague (CZ), 01.04.2019-03.04.2019]
Grant CEP: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606
Grant ostatní: OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institucionální podpora: RVO:68378271
Klíčová slova: 10 PW laser * High energy * OPCPA
Obor OECD: Optics (including laser optics and quantum optics)

We report on the status of the re-commissioning of a high energy OPCPA laser system with programmable spectrum that serves as a frontend for a 10 PW laser at ELI-Beamlines. The OPCPA chain was developed by a consortium of National Energetics and Ekspla along with scientists of ELI-Beamlines.1 The laser system, consisting of three picosecond OPCPA stages, pulse cleaner, Offner stretcher, and 5 nanosecond OPCPA stages pumped by Nd:YAG lasers with programmable pulse shape (NL944, Ekspla), allows for precise spectral shaping while achieving high nonlinear conversion efficiency. Employing a subsequent Nd:glass power amplifiers (PA), the system was demonstrated to yield>1 kJ of energy, while maintaining broad spectrum of > 13 nm (FWHM). After recommissioning the OPCPA frontend in Dolní Břežany, an output energy of 4.3 J, flat beam-profile and good far-field quality has been demonstrated. The spectral shape has been optimized to support > 15 nm bandwidth and >1.5 kJ, consistent with 10 PW operation of the fully integrated laser system after compression.
Trvalý link: http://hdl.handle.net/11104/0306292