Simulation and investigation of conduction-driven thermal blooming at 2055 nm

Dominik Lorenz; Marius Rupp; Dieter Panitzek; Clément Romano; Patrick Forster; Julian Schneider; Marc Eichhorn; Christelle Kieleck

doi:10.1117/12.3003038

13 March 2024 Simulation and investigation of conduction-driven thermal blooming at 2055 nm

Dominik Lorenz, Marius Rupp, Dieter Panitzek, Clément Romano, Patrick Forster, Julian Schneider, Marc Eichhorn, Christelle Kieleck

Author Affiliations +

Proceedings Volume 12877, Free-Space Laser Communications XXXVI; 128771V (2024) https://doi.org/10.1117/12.3003038
Event: SPIE LASE, 2024, San Francisco, California, United States

Conference Poster

Abstract

In this work we propose a simulation tool to analyze the case of conduction-driven thermal blooming and compare the results with measurements at the 2055 nm absorption line of CO₂. Using a split-step beam propagation method and incorporating the spatial refractive index change related to the absorption-driven radial temperature gradient resulting from conduction, the effect of beam distortion can be described for arbitrary wavelengths and various atmospheric conditions. The model is benchmarked by experimental investigations using a tunable 100-W thulium fiber laser.

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Dominik Lorenz, Marius Rupp, Dieter Panitzek, Clément Romano, Patrick Forster, Julian Schneider, Marc Eichhorn, and Christelle Kieleck "Simulation and investigation of conduction-driven thermal blooming at 2055 nm", Proc. SPIE 12877, Free-Space Laser Communications XXXVI, 128771V (13 March 2024); https://doi.org/10.1117/12.3003038

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