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Proceedings Paper

Square top-hat and round top-hat laser beam shaping with multi-plane light conversion for femtosecond laser material microprocessing (Conference Presentation)
Author(s): Clément Jacquard; Girolamo Mincuzzi; Marc Faucon; Aurélien Sikora; Rainer Kling; Gwenn Pallier; Nicolas Laurenchet; Pu Jian; Olivier Pinel; Guillaume Labroille

Paper Abstract

Multi-Plane Light Conversion (MPLC) is an innovative shaping technique which allows theoretically lossless complex beam shapes. The free-space reflective design is particularly well suited to Ultra-Short Pulse (USP) laser-based processes challenges. We demonstrate the system high stability over long processing times thanks to a mode cleaning feature. Here we show micro-cutting and engraving tests carried out on stainless-steel and brass with a high power, industrial, USP laser having squared, and circular top-hat profile generated using MPLC technology. Thanks to the sharp edges of the profile, a sensible reduction of the taper and optimization of the overlapping is observed

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11266, Laser Resonators, Microresonators, and Beam Control XXII, 1126610 (9 March 2020); doi: 10.1117/12.2546397
Show Author Affiliations
Clément Jacquard, CAILabs (France)
Girolamo Mincuzzi, ALPhANOV (France)
Marc Faucon, ALPhANOV (France)
Aurélien Sikora, ALPhANOV (France)
Rainer Kling, ALPhANOV (France)
Gwenn Pallier, CAILabs (France)
Nicolas Laurenchet, CAILabs (France)
Pu Jian, CAILabs (France)
Olivier Pinel, CAILabs (France)
Guillaume Labroille, CAILabs (France)

Published in SPIE Proceedings Vol. 11266:
Laser Resonators, Microresonators, and Beam Control XXII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Andrea M. Armani, Editor(s)

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