The construction of Allegra kilohertz femtosecond laser system at ELI-Beamlines

0521700 - FZÚ 2020 RIV US eng C - Conference Paper (international conference)
Antipenkov, Roman - Batysta, František - Boge, Robert - Erdman, Emily - Greco, Michael - Green, Jonathan T. - Himmel, Bedřich - Horáček, Martin - Hubka, Zbyněk - Indra, Lukáš - Majer, Karel - Mazanec, Tomáš - Mazůrek, Petr - Naylon, Jack A. - Novák, Jakub - Šobr, Václav - Špaček, Alexandr - Strkula, Petr - Torun, Murat - Tykalewicz, Boguslav - Bakule, Pavel - Rus, Bedřich
The construction of Allegra kilohertz femtosecond laser system at ELI-Beamlines.
Short-Pulse High-Energy Lasers and Ultrafast Optical Technologies. Bellingham: SPIE, 2019 - (Bakule, P.; Haefner, C.), Roč. 11034 (2019), s. 1-6, č. článku 110340M. 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]
R&D Projects: GA MŠMT EF16_019/0000789; GA MŠMT LQ1606
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institutional support: RVO:68378271
Keywords : femtosecond laser system * OPCPA technology * vacuum
OECD category: Optics (including laser optics and quantum optics)

The Allegra femtosecond laser system is the main driver for high harmonic and plasma x-ray secondary sources at ELI-Beamlines operating at a 1 kHz rep rate. The system is based on OPCPA technology and consists of seven amplification stages pumped by thin-disk picosecond lasers. It is designed to reach 30 mJ output in the first phase of operation and to be ramped up to 50 mJ by engaging an additional pump laser. The amplified pulse is compressed to sub-20fs by an array of chirped mirrors and higher order dispersion is pre-compensated for by a Dazzler AOPDF in the front-end. In this paper we present the overview of Allegra system and the current status of deployment with a special focus on the high average power OPCPA in vacuum.
Permanent Link: http://hdl.handle.net/11104/0306291