@inproceedings{376542ffc1d745349cf070f053c04377,
title = "Recent status of the SYLOS 2 laser system of ELI-ALPS",
abstract = "This manuscript presents the most recent upgrades made on SYLOS2 laser system in ELI-ALPS1. These modifications on the system were done based on the feedback from the experimental end-stations during the last 3 years. First, the long virtual propagation of the super-Gaussian output beam reduced by modifying the imaging telescope after the amplification stages, which significantly improved the beam profile hindered by the propagation-related diffraction pattern. The optical parametric chirped pulse amplification (OPCPA) stages were equipped with new nonlinear crystals which enabled to reach 42 mJ output energy with <8 fs pulse duration, which is 10 mJ more than the previous configuration. To increase the high-harmonic generation (HHG) efficiency a spatial filter was installed in the laser system which provides a nearly Gaussian beam profile at the output with 80\% transmission. The spatial filter is based on a glass cone and is operated under vacuum. Currently, >20 mJ, <8 fs CEP-stable pulses are provided at the user stations after the beam transport system.",
keywords = "OPCPA, TW-level, high-harmonic generation, parametric amplification, spatial filter",
author = "J. Csontos and Sz T{\'o}th and T. Stanislauskas and I. Balciunas and J. Adamonis and I. Abromavi{\v c}ius and T{\'o}th, \{L. T.\} and T. Somosk{\H o}i and Geetha, \{P. P.\} and D. Abt and B. Kajla and R. Lopez-Martens and A. B{\"o}rzs{\"o}nyi",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; High-Power, High-Energy Lasers and Ultrafast Optical Technologies 2023 ; Conference date: 24-04-2023 Through 26-04-2023",
year = "2023",
month = jan,
day = "1",
doi = "10.1117/12.2665699",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Pavel Bakule and Haefner, \{Constantin L.\} and Joachim Hein and Butcher, \{Thomas J.\}",
booktitle = "High-Power, High-Energy Lasers and Ultrafast Optical Technologies",
}