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Proceedings Paper

Efficient micro machining with high average power picosecond lasers
Author(s): S. Weiler; U. Stute; S. Massa; S. Buettner; B. Faisst
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Paper Abstract

Picosecond pulses are ideal for processing of materials where thermal influence must be minimized. Furthermore, for ps pulse durations, the technical approach to generating the pulses can be greatly simplified, allowing average output powers of 50 W at the fundamental wavelength of 1030 nm. We report on the latest results for efficient micro machining. Fundamental investigations show the measured ablation thresholds for the most convenient materials (i.e. Fe, SS, Al, Cu, Brass, Si, NiTi, etc.) and the measured transition from so called optical ablation to thermal ablation. By using these results we optimized micro machining processes, like cutting, drilling and thin film ablation with ps pulses.

Paper Details

Date Published: 15 February 2008
PDF: 5 pages
Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 68811B (15 February 2008); doi: 10.1117/12.761770
Show Author Affiliations
S. Weiler, TRUMPF Laser GmbH + Co. KG (Germany)
U. Stute, TRUMPF Laser GmbH + Co. KG (Germany)
S. Massa, TRUMPF Laser GmbH + Co. KG (Germany)
S. Buettner, TRUMPF Laser GmbH + Co. KG (Germany)
B. Faisst, TRUMPF Laser GmbH + Co. KG (Germany)

Published in SPIE Proceedings Vol. 6881:
Commercial and Biomedical Applications of Ultrafast Lasers VIII
Joseph Neev; Stefan Nolte; Alexander Heisterkamp; Christopher B. Schaffer, Editor(s)

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