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17 March 2023 High power shaped femtosecond beams for riblets manufacturing
Eric Audouard, Martin Delaigue, Clemens Hoenninger, Eric Mottay, Gwenn Pallier, Ivan Gusachenko, Guillaume Labroille, Marie Fleureau
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Proceedings Volume PC12411, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII; PC124110L (2023) https://doi.org/10.1117/12.2649185
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
Riblets manufacturing allow the reduction of flight consumption of 2 to 3% but requires both high precision in texturing and high processing speed to engrave large surfaces. An innovative combination of high-speed (100 kHz) and high energy (3 mJ) femtosecond laser with a beam division up to 9 spots, and a square shaping of the spots is presented using multi plane light conversion (MPLC) beam shaping technique for both the beam division and the square beam forming, with homogeneity of spots better than 95%. Texturing tests will be presented and compared to achievements using non shaped Gaussian laser beams.
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Eric Audouard, Martin Delaigue, Clemens Hoenninger, Eric Mottay, Gwenn Pallier, Ivan Gusachenko, Guillaume Labroille, and Marie Fleureau "High power shaped femtosecond beams for riblets manufacturing", Proc. SPIE PC12411, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XXIII, PC124110L (17 March 2023); https://doi.org/10.1117/12.2649185
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KEYWORDS
Beam shaping
Femtosecond phenomena
Manufacturing
High power lasers
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