ELI Beamlines L4 ATON laser

ELi Beamlines L4 ATON laser system is designed to generate an extremely high and unprecedented peak power of 10 PW (Petawatt) in pulses with duration of 150 fs. The system architecture is based on chirped amplification (CPA) in several successive stages of optical parametric amplifiers, followed by direct amplification in two types of Nd:glass laser discs. Innovative technologies including disc liquid cooling enable to operate the system at the repetition rate of up to 1 shot per minute, which is more than one order of magnitude higher compared to other present-day kJ-class lasers. The laser was built by the consortium of National Energetics (USA) and EKSPLA (Lithuania), with major contribution of ELI Beamlines, which developed the 10 PW compressor and participated in development of numerous subsystems including the OPCPA preamplifiers, diagnostics or integrated electronic control system.