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Beam delivery methods for highly efficient USP-laser micro structuring of large cylindrical surfaces for printing and embossing
Author(s): Guido Hennig; Stephan Bruening; Beat Jäggi; Adrian Stirnimann; Beat Neuenschwander
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Paper Abstract

Despite of today’s availability of high power USP lasers up to several hundred Watts, it is still a challenge to structure large surface areas as required on printing and embossing rollers within an acceptable processing time for industrial production. This paper shows and compares the results of two different approaches, the parallel treatment of the workpiece with multiple beam arrangements (each beam individually modulated at repetition rates of up to 2 MHz) and a second approach based on high pulse repetition rates from 6 MHz to 16 MHz combined with fast beam scanning techniques with a polygon scanner up to 100 m/s.

Paper Details

Date Published: 16 February 2018
PDF: 7 pages
Proc. SPIE 10519, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIII, 1051908 (16 February 2018); doi: 10.1117/12.2290356
Show Author Affiliations
Guido Hennig, Daetwyler Graphics AG (Switzerland)
Stephan Bruening, Schepers GmbH & Co., KG (Germany)
Beat Jäggi, Berner Fachhochschule Technik und Informatik (Switzerland)
Adrian Stirnimann, Berner Fachhochschule Technik und Informatik (Switzerland)
Beat Neuenschwander, Berner Fachhochschule Technik und Informatik (Switzerland)


Published in SPIE Proceedings Vol. 10519:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIII
Beat Neuenschwander; Costas P. Grigoropoulos; Tetsuya Makimura; Gediminas Račiukaitis, Editor(s)

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