High-Energy, Sub-20 fs OPCPA Laser System Operating at 1 kHz Repetition Rate

We report on the status of the Allegra laser beamline currently being commissioned at the ELI-Beamlines facility. The beamline will be used to drive X-ray sources for research in material science, molecular physics, and biophysics, where a high repetition rate is essential. Designed for user operation, significant attention is given to stability, reliability, and automation of the system. A photo of the beamline is shown in Fig. 1(a).