Efficient micro machining with high average power picosecond lasers

S. Weiler; U. Stute; S. Massa; S. Buettner; B. Faisst

doi:10.1117/12.761770

15 February 2008 Efficient micro machining with high average power picosecond lasers

S. Weiler, U. Stute, S. Massa, S. Buettner, B. Faisst

Proceedings Volume 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII; 68811B (2008) https://doi.org/10.1117/12.761770
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

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.

Citation Download Citation

S. Weiler, U. Stute, S. Massa, S. Buettner, and B. Faisst "Efficient micro machining with high average power picosecond lasers", Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 68811B (15 February 2008); https://doi.org/10.1117/12.761770

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