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Proceedings Paper

Beam shaping for ultrafast materials processing
Author(s): Daniel Flamm; Daniel Günther Grossmann; Michael Jenne; Felix Zimmermann; Jonas Kleiner; Myriam Kaiser; Julian Hellstern; Christoph Tillkorn; Malte Kumkar
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Paper Abstract

The remarkable temporal properties of ultra-short pulsed lasers in combination with novel beam shaping concepts enable the development of completely new material processing strategies. We demonstrate the benefit of employing focus distributions being tailored in all three spatial dimensions. As example advanced Bessel-like beam profiles, 3D-beam splitting concepts and flat-top focus distributions are used to achieve high-quality and efficient results for cutting, welding and drilling applications. Spatial and temporal in situ diagnostics is employed to analyze light-matter interaction and, in combination with flexible digital-holographic beam shaping techniques, to find the optimal beam shape for the respective laser application.

Paper Details

Date Published: 4 March 2019
PDF: 17 pages
Proc. SPIE 10904, Laser Resonators, Microresonators, and Beam Control XXI, 109041G (4 March 2019); doi: 10.1117/12.2511516
Show Author Affiliations
Daniel Flamm, TRUMPF Laser- und Systemtechnik GmbH (Germany)
Daniel Günther Grossmann, TRUMPF Laser GmbH (Germany)
Michael Jenne, TRUMPF Laser- und Systemtechnik GmbH (Germany)
Felix Zimmermann, TRUMPF Laser- und Systemtechnik GmbH (Germany)
Jonas Kleiner, TRUMPF Laser- und Systemtechnik GmbH (Germany)
Myriam Kaiser, TRUMPF Laser- und Systemtechnik GmbH (Germany)
Julian Hellstern, TRUMPF Laser GmbH (Germany)
Christoph Tillkorn, TRUMPF Laser GmbH (Germany)
Malte Kumkar, TRUMPF Laser- und Systemtechnik GmbH (Germany)


Published in SPIE Proceedings Vol. 10904:
Laser Resonators, Microresonators, and Beam Control XXI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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