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P: Fachverband Plasmaphysik
P 11: Laser Plasmas
P 11.3: Vortrag
Mittwoch, 2. April 2025, 11:45–12:00, ZHG102
The 40 mJ, kHz front-end and pre-amplifier of the KALDERA drive laser for plasma-acceleration — •Cora Braun1,2, Caterina Vidoli1, Juan B. Gonzalez-Diaz1, Christian Werle1, Timo Eichner1, Thomas Hülsenbusch1, Lutz Winkelmann1, Guido Palmer1, and Andreas R. Maier1 — 1Deutsches Elektronen Synchrotron DESY, Hamburg, Germany — 2Institute for Experimental Physics, University of Hamburg, Hamburg, Germany
Scaling the repetition rate of laser-plasma accelerators from a few Hz towards the kHz range is a crucial step to enable future applications like free-electron lasers or direct synchrotron-injection. Moreover, a laser high-repetition rate enables active stabilization of crucial laser parameters which will support sub-percent energy spread and energy stability from the plasma accelerator. The KALDERA laser system at DESY will drive such a high repetition rate laser-plasma accelerator. The setup and commissioning of the first project phase, aiming for 100 Hz, 0.5 J, <30 fs pulses, is currently being completed. In this contribution the layout and performance of the in-house developed KALDERA kHz front-end and its subsequent cryogenic kHz-Ti:Sa pre-amplifier will be presented. We report on the performance of the individual subsystems and how they are interfaced to generate 40 mJ of pulse energy with sub-percent stability.
Keywords: Laser develpoment; Laser-Plasma-acceleration; High-Power Laser