Femtosecond pulses from a backside-cooled 2-µm, GDD balanced InGaSb VECSEL

Marco Gaulke; Jonas Heidrich; Nicolas Huwyler; Matthias Golling; Ajanta Barh; Ursula Keller

doi:10.1117/12.2649837

17 March 2023 Femtosecond pulses from a backside-cooled 2-µm, GDD balanced InGaSb VECSEL

Marco Gaulke, Jonas Heidrich, Nicolas Huwyler, Matthias Golling, Ajanta Barh, Ursula Keller

Proceedings Volume 12404, Vertical External Cavity Surface Emitting Lasers (VECSELs) XII; 124040F (2023) https://doi.org/10.1117/12.2649837
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We report on a SESAM modelocked GDD balanced VECSEL embedding the active region in quaternary Al15Ga85AsSb. The GDD is flattened by a multilayer semiconductor dielectric top-coating allowing for stable femtosecond operation with a standard SESAM and high-quality YAG Brewster windows. We avoid tradeoffs that would limit the output power. This GDD balanced VECSEL is the next step towards higher level of integration: pump-DBR implementation, demonstration of 1:1 modelocking, and absorber integration will yield a 2-µm MIXSEL, where gain medium and absorber are grown in one monolithic structure.

Conference Presentation

Citation Download Citation

Marco Gaulke, Jonas Heidrich, Nicolas Huwyler, Matthias Golling, Ajanta Barh, and Ursula Keller "Femtosecond pulses from a backside-cooled 2-µm, GDD balanced InGaSb VECSEL", Proc. SPIE 12404, Vertical External Cavity Surface Emitting Lasers (VECSELs) XII, 124040F (17 March 2023); https://doi.org/10.1117/12.2649837

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