Material processing with fiber based ultrafast pulse delivery

S. Baumbach; R. Stockburger; B. Führa; S. Zoller; S. Thum; J. Moosmann; D. Maier; F. Kanal; S. Russ; E. Kaiser; A. Budnicki; D. H. Sutter; S. Pricking; A. Killi

doi:10.1117/12.2288263

19 February 2018 Material processing with fiber based ultrafast pulse delivery

S. Baumbach, R. Stockburger, B. Führa, S. Zoller, S. Thum, J. Moosmann, D. Maier, F. Kanal, S. Russ, E. Kaiser, A. Budnicki, D. H. Sutter, S. Pricking, A. Killi

Author Affiliations +

Proceedings Volume 10522, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVIII; 1052211 (2018) https://doi.org/10.1117/12.2288263
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

We report on TRUMPF´s ultrafast laser systems equipped with industrialized hollow core fiber laser light cables. Beam guidance in general by means of optical fibers, e.g. for multi kilowatt cw laser systems, has become an integral part of laser-based material processing. One advantage of fiber delivery, among others, is the mechanical separation between laser and processing head. An equally important benefit is given by the fact that the fiber end acts as an opto-mechanical fix-point close to successive optical elements in the processing head. Components like lenses, diffractive optical elements etc. can thus be designed towards higher efficiency which results in better material processing. These aspects gain increasing significance when the laser system operates in fundamental mode which is usually the case for ultrafast lasers. Through the last years beam guidance of ultrafast laser pulses by means of hollow core fiber technology established very rapidly. The combination of TRUMPF´s long-term stable ultrafast laser sources, passive fiber coupling, connector and packaging forms a flexible and powerful system for laser based material processing well suited for an industrial environment. In this article we demonstrate common material processing applications with ultrafast lasers realized with TRUMPF´s hollow core fiber delivery. The experimental results are contrasted and evaluated against conventional free space propagation in order to illustrate the performance of flexible ultrafast beam delivery.

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S. Baumbach, R. Stockburger, B. Führa, S. Zoller, S. Thum, J. Moosmann, D. Maier, F. Kanal, S. Russ, E. Kaiser, A. Budnicki, D. H. Sutter, S. Pricking, and A. Killi "Material processing with fiber based ultrafast pulse delivery", Proc. SPIE 10522, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVIII, 1052211 (19 February 2018); https://doi.org/10.1117/12.2288263

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KEYWORDS

Ultrafast lasers

Diamond

Laser processing

Silver

Fiber lasers

Materials processing

Laser drilling

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