Scheme of the LLR thin-disk based CPA laser system. The main laser components are based on the industrial solutions from TRUMPF Laser GmbH. The seed pulses are stretched in a chirped fiber Bragg grating (CFBG) and pre-amplified in an active fiber. The energy of the chirped pulses is increased in the subsequent regenerative amplifier delivering >200 mJ of pulse energy. The multipass amplifier consists of four thin-disk laser heads and it is capable of boosting the pulse energy to the Joule level. Pulse recompression down to ≤ 1 ps pulse duration is performed in a Treacy-type grating-based compressor. SLM: Spatial Light Modulator; BBO-PC: Beta Barium Borate based Pocket Cells; HWP: Half-Wave Plate; TFP: Thin Film Polarizer; SHG: Second Harmonic Generation; THG: Third Harmonic Generation.