Hannover 2020 – scientific programme
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K: Fachverband Kurzzeit- und angewandte Laserphysik
K 4: Poster
K 4.1: Poster
Tuesday, March 10, 2020, 16:30–18:30, f428
High-power OPCPAs at 1.45 - 2.4 µm wavelength — Ivanka Grguras1, Jan-Heye Buss1, Torsten Golz1, Mark Prandolini1,2, Michael Schulz1, and •Robert Riedel1 — 1Class 5 Photonics GmbH, Notkestrasse 85, 22607 Hamburg, Germany — 2Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
High power and high repetition rate femtosecond lasers at 1.45 - 2.40 µm wavelength are critical for many applications in the physical, chemical, and biological sciences. Previously, such systems have been realized by optical parametric amplification from Ti:Sapphire lasers at 800 nm with limited power levels. A novel optical parametric chirped-pulse amplifier (OPCPA), pumped by high-power Yb-doped solid state lasers, and combined with bulk crystal white-light-generation seeding (WLG) is demonstrated. The laser system features tunable and broadband operation in the 1.45 - 2.40 µm spectral range, requiring no complex cooling with a compact footprint. Such systems have recently become commercially available from Class 5 Photonics and allow for scalability up to millijoule pulse energies at 100 W average power with a tunable range from 1.45 - 2.45 µm.