High power CO2 laser development with AOM integration for ultra high-speed pulses

Markus Bohrer; Matthias Vaupel; Robert Nirnberger; Bernhard Weinberger; Murad Jamalieh

doi:10.1117/12.2263755

13 January 2017 High power CO₂ laser development with AOM integration for ultra high-speed pulses

Markus Bohrer, Matthias Vaupel, Robert Nirnberger, Bernhard Weinberger, Murad Jamalieh

Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 102540U (2017) https://doi.org/10.1117/12.2263755
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria

Abstract

There is a 500 billion USD world market for packaging expected to grow to a trillion in 2030. Austria plays an important role world wide for high speed laser engraving applications — especially when it comes to high end solutions. Such high end solutions are fundamental for the production of print forms for the packaging and decorating industry (e. g. cans). They are additionally used for security applications (e. g. for printing banknotes), for the textile printing industry and for creating embossing forms (e. g. for the production of dashboards in the automotive industry). High speed, high precision laser engraving needs laser resonators with very stable laser beams (400 – 800W) especially in combination with AOMs. Based upon a unique carbon fiber structure – stable within the sub-micrometer range – a new resonator has been developed, accompanied by most recent thermo-mechanical FEM calculations. The resulting beam is evaluated on an automated optical bench using hexapods, allowing to optimize the complete beam path with collimators and AOM. The major steps related to laser engraving of dry offset printing plates during the full workflow from the artists design to the printed result on an aluminum can is presented in this paper as well as laser characteristics, AOM integration and correlative CLSM and SEM investigation of the results.

Citation Download Citation

Markus Bohrer, Matthias Vaupel, Robert Nirnberger, Bernhard Weinberger, and Murad Jamalieh "High power CO₂ laser development with AOM integration for ultra high-speed pulses", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102540U (13 January 2017); https://doi.org/10.1117/12.2263755

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KEYWORDS

Printing

Bragg cells

Gas lasers

Laser engraving

Carbon

Carbon monoxide

Acoustics

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