Mr. Steffen Rübling Profile

Steffen Rübling

at TRUMPF Laser GmbH

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 13 March 2024 Presentation

Ultrafast thin-disk multipass amplifier for kW-class average power with single-pulse energies above 10 mJ

B. Dannecker, M. Scharun, H. Höck, D. Bauer, S. Rübling, U. Quentin, C. Siebert, D. Sutter, K. Albers, A. Killi

Proceedings Volume PC12864, PC1286407 (2024) https://doi.org/10.1117/12.3001463

KEYWORDS: Ultrafast phenomena, Ultrafast lasers, Laser applications, Pulsed laser operation, Picosecond phenomena, Laser systems engineering, Laser stabilization, Fiber lasers, X-rays, Windows

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Proceedings Article | 12 March 2024 Presentation + Paper

Kilowatt-class high repetition rate ultrafast lasers based on industrial slab and disk laser platforms

Michael Rampp, Benjamin Dannecker, Michael Scharun, Helge Hoeck, Dominik Bauer, Jochen Kleinbauer, Jonathan Brons, Hans-Jürgen Otto, Holger Diekamp, Aleksander Budnicki, Raphael Gebs, Klaus Albers, Torsten Mans, Sandro Klingebiel, Jonas Mertin, Ulf Quentin, Steffen Rübling, Christof Siebert, Claus Schnitzler, Dirk Sutter, Alexander Killi, Thomas Metzger

Proceedings Volume 12875, 128750G (2024) https://doi.org/10.1117/12.3002891

KEYWORDS: Ultrafast phenomena, Pulsed laser operation, Ultrafast lasers, Materials processing, Laser radiation, Laser processing, Disk lasers, Switching, Picosecond phenomena, High harmonic generation, Coherent x-ray sources, Bulk lasers

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Proceedings Article | 17 March 2023 Presentation + Paper

Black marking for medical industry with ultrashort-pulsed lasers at different laser pulse durations

Bernd Docters, Stefan Marzenell, Myriam Kaiser, Josephin Böhm, Holger Breitenborn, Robert Groß, Steffen Rübling, Christoph Weinert, Sebastian Groß, Daniel Flamm, Bernd Block, Aleksander Budnicki, Sören Richter

Proceedings Volume 12411, 1241104 (2023) https://doi.org/10.1117/12.2647720

KEYWORDS: Laser marking, Pulsed laser operation, Industry, Laser processing, Stainless steel, Passivation

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Using lasers for permanent markings is a well-known method and standard in many areas in industrial manufacturing. Various processes on all kinds of materials are used to achieve durable markings, where the content is often serial numbers, codes and company logos. Whereas laser marking processes are mostly easy to handle it becomes challenging if the markings need to fulfill the requirements of the medical industry. The demand for markings in the medical industry is increasing because of the regulations in this sector. The labelling of medical devices with a traceable Unique Device Identification (UDI) code has become mandatory. Laser marking of medical steel needs to fulfill certain criteria where corrosion resistance, a toxicologically uncritical surface and good contrast, are key factors. Standard laser marking systems are reaching their limits to fulfill these criteria. The best choice to accomplish this challenge is the usage of ultrashort pulsed (USP) lasers. The process using USP lasers, fulfilling the criteria of medical industry, is often called “black marking”. We use the TruMicro Mark 2030 G2 S. This laser has the advantage of full flexibility of the important parameters, such as pulse energy, pulse frequency and pulse duration. Due to the great necessity for reliable medical devices, we investigate the effect of varying different laser parameters on the resulting structures of the black marking process on stainless steel in an experimental study. Analyzed is the dependency of the resulting structures on the energy density by varying the laser spotsize. This is adjusted by a parameter in the marking software and can be set continuously. The dependency of the resulting structures on the pulse duration is investigated by varying the pulse duration. The pulse duration is adjusted by a parameter in the marking software and can be tuned in the range of 400 fs to 20 ps at 100 fs increments. The fundamental parameters like beam quality, beam pointing or energy stability are not affected by changing the pulse duration. The fast switching time of < 800 ms enables for intra-process tuning of the temporal energy deposition. Analyzing the results by a Scanning Electron Microscope (SEM) reveals different surface structures. The structures change in its appearance, periodicity, and groove depth. Various of the described structures can give a permanent black contrast and fulfill the requirements of medical industry.

Proceedings Article | 17 March 2023 Presentation + Paper

High precision drilling with aspect ratios of 1:40: from laser source to application

Florian Lendner, Roswitha Giedl-Wagner, Steffen Rübling, Marc Sailer, Axel Fehrenbacher

Proceedings Volume 12409, 124090B (2023) https://doi.org/10.1117/12.2649948

KEYWORDS: Laser drilling, Beam diameter, Ultrafast phenomena, Pulsed laser operation, Head, Nozzles, Nickel, Laser sources, Laser processing, Industrial applications

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Proceedings Article | 17 March 2023 Presentation + Paper

Ultrafast laser platform providing dynamic peak power and energy deposition control: from laser source to industrial applications

Marc Sailer, Florian Jansen, Steffen Ruebling, Aleksander Budnicki, Axel Fehrenbacher

Proceedings Volume 12408, 124080E (2023) https://doi.org/10.1117/12.2650002

KEYWORDS: Ultrafast phenomena, Pulsed laser operation, Laser ablation, Laser applications, Laser engraving, Laser processing, Ablation, Industrial applications, Ultrafast lasers, Picosecond phenomena

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Proceedings Article | 1 April 2022 Presentation

Addressing thermal effects during ultrashort pulse laser micro-machining with flexible energy deposition on wide timescales

Axel Fehrenbacher, Marc Sailer, Steffen Ruebling, Ulf Quentin, Aleksander Budnicki, Yidong Zhou

Proceedings Volume PC11989, PC1198909 (2022) https://doi.org/10.1117/12.2609624

KEYWORDS: Ultrafast phenomena, Micromachining, Thermal effects, Pulsed laser deposition, Microscopes, Image processing, Visualization, Switching, Surface roughness, Surface finishing

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Proceedings Article | 4 March 2022 Presentation

Thin-disk multipass amplifier for kilowatt-class ultrafast lasers above 100 mJ pulse energy

Michael Scharun, Johanna Dominik, Dominik Bauer, Benjamin Dannecker, Dirk Sutter, Alexander Killi, Michael Rampp, Thomas Metzger, Steffen Ruebling, Ulf Quentin, Heather George

Proceedings Volume PC11980, PC1198003 (2022) https://doi.org/10.1117/12.2607718

KEYWORDS: Amplifiers, Ultrafast lasers, Pulsed laser operation, Picosecond phenomena, X-rays, Optical testing, Mirrors, Laser cutting, Laser applications, High harmonic generation

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Proceedings Article | 5 March 2021 Presentation + Paper

New generation TruMicro series 2000: micromachining versatility by GHz-burst, higher average power, flexible pulse on demand and integrated hollow-core fiber interface

Axel Fehrenbacher, Marc Sailer, Benjamin Fuehra, Florian Jansen, Chuong Tan, Stefan Baumbach, Rainer Flaig, Christian Eberhardt, Steffen Ruebling, Ulf Quentin, Dirk Sutter, Aleksander Budnicki

Proceedings Volume 11674, 116740U (2021) https://doi.org/10.1117/12.2578084

KEYWORDS: Interfaces, Micromachining, Ultrafast phenomena, Switching, Surface roughness, Semiconductors, Patents, Optomechanical design, Metals

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Proceedings Article | 5 March 2021 Presentation

Deep UV for materials processing based on the industrial TruMicro Series of ultrafast solid-state laser amplifiers

Stephan Häfner, Carolin Wagner, Benyamin Shnirman, Markus Ginter, Jonathan Brons, Marc Sailer, Axel Fehrenbacher, Daniel Grossmann, Daniel Flamm, Kian Janami, Steffen Ruebling, Ulf Quentin, Aleksander Budnicki, Ivo Zawischa, Dirk Sutter

Proceedings Volume 11670, 116701F (2021) https://doi.org/10.1117/12.2577162

KEYWORDS: Deep ultraviolet, Ultrafast phenomena, Solid state electronics, Optical amplifiers, Solid state lasers, Materials processing, Gallium nitride, Ultrafast lasers, Silicon carbide, Near infrared

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Showing 5 of 9 publications

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