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K: Fachverband Kurzzeit- und angewandte Laserphysik

K 2: Light Sources and Diagnostics

K 2.1: Talk

Thursday, September 2, 2021, 14:00–14:15, H2

Dual channel, high repetition rate OPCPA at 800 nm and 2 µm with stable CEP — •Ekaterina Zapolnova¹, Thomas Braatz¹, Sebastian Starosielec¹, Torsten Golz¹, Jan Heye Buss¹, Michael Schulz¹, Robert Riedel¹, and Mark J. Prandolini^1,2 — ¹Class 5 Photonics GmbH, Notkestraße 85, 22607 Hamburg, Germany — ²Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

For attosecond technology, carrier envelope phase (CEP) stabilization in the few-cycle regime combined with high repetition rates is essential for studying ultrafast electronic processes in atoms, molecules, solids, and complex many body systems. Therefore, a laser system was designed, where the laser pulses are generated from a single white-light-generation (WLG) source operating at 1 MHz, provding dual simultaneous CEP stable pulses at 2 µm and 800 nm with pulse duations of <40 fs and <10 fs, and pulse energies of 1 µJ and 1.2 µJ, respectively. The system is robust and compact, with a footprint of less than a square meter.