Dr. Max Kahmann Profile

Dr. Max Kahmann

at TRUMPF Laser- und Systemtechnik GmbH

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 12 March 2024 Presentation + Paper

Selective laser etching of displays: closing the gap between optical simulations and fabrication

Martin Wimmer, Myriam Kaiser, Jonas Kleiner, Jannis Wolff, Max Kahmann, Daniel Flamm

Proceedings Volume 12872, 1287206 (2024) https://doi.org/10.1117/12.3000501

KEYWORDS: Etching, Glasses, Simulations, Pulsed laser operation, Optical simulations, Laser cutting, Laser based displays, 3D modeling, Ultrafast phenomena, Microscopes

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Proceedings Article | 17 March 2023 Presentation + Paper

Tailored-edge laser glass cleaving supported by thermal separation

Myriam Kaiser, Max Kahmann, Jonas Kleiner, Daniel Flamm

Proceedings Volume 12408, 124080C (2023) https://doi.org/10.1117/12.2649794

KEYWORDS: Glasses, Carbon monoxide, Laser radiation, Ultrafast phenomena, Laser cutting, Pulsed laser operation, Laser processing, Laser glasses, Holography

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Proceedings Article | 17 March 2023 Presentation

High energy ultrafast laser surface texturing with variable multi-spot patterns

Jonas Mayer, Christian Weddeling, Felix Zimmermann, Fabian Kimmich, Julian Hellstern, Max Kahmann, Christoph Tillkorn, Jonas Kleiner, Andreas Heimes, Daniel Flamm

Proceedings Volume PC12414, PC1241401 (2023) https://doi.org/10.1117/12.2650000

KEYWORDS: Ultrafast lasers, Optical scanning systems, Optical components, Materials processing, Light sources, Laser processing, Laser applications, Head, Glasses, Beam splitters

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Proceedings Article | 4 March 2022 Presentation + Paper

Chamfered-edge laser cleaving of transparent materials

Myriam Kaiser, Hamza Dounassre, Max Kahmann, Julian Hellstern, Jonas Kleiner, Christoph Tillkorn, Daniel Flamm

Proceedings Volume 11991, 1199107 (2022) https://doi.org/10.1117/12.2607604

KEYWORDS: Glasses, Laser processing, Objectives, Microscopes, Holography, Monochromatic aberrations, Beam splitters, Ultrafast phenomena, Diffraction, Etching

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Proceedings Article | 14 March 2018 Presentation

TruMicro 7380: advancements in high-power UV nanosecond disk lasers (Conference Presentation)

Florian Kanal, Max Kahmann, Veit Angrick, Montasser Bouzid, Wolfgang Schüle, Christian Stolzenburg

Proceedings Volume 10511, 105110M (2018) https://doi.org/10.1117/12.2290353

KEYWORDS: Pulsed laser operation, Ultraviolet radiation, Laser development, Laser applications, Solid state lasers, High power lasers, Disk lasers, Quantum cascade lasers, Fiber lasers, Reliability

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Proceedings Article | 26 February 2018 Paper

Fiber laser platform for highest flexibility and reliability in industrial femtosecond micromachining: TruMicro Series 2000

Florian Jansen, Florian Kanal, Max Kahmann, Chuong Tan, Holger Diekamp, Raphael Scelle, Aleksander Budnicki, Dirk Sutter

Proceedings Volume 10512, 105122L (2018) https://doi.org/10.1117/12.2290394

KEYWORDS: Glasses, Fiber lasers, Reliability, Femtosecond phenomena, Micromachining, Silicon carbide, Silica, Laser welding, Silicon, Laser processing

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Proceedings Article | 22 February 2017 Paper

TruMicro Series 2000 sub-400 fs class industrial fiber lasers: adjustment of laser parameters to process requirements

Florian Kanal, Max Kahmann, Chuong Tan, Holger Diekamp, Florian Jansen, Raphael Scelle, Aleksander Budnicki, Dirk Sutter

Proceedings Volume 10083, 100832F (2017) https://doi.org/10.1117/12.2252433

KEYWORDS: Laser processing, Laser applications, Ultrafast lasers, Reliability, Fiber amplifiers, Oscillators, Pulsed laser operation, Patents, Laser stabilization, Process control, Fiber lasers, Picosecond phenomena, Femtosecond phenomena, Ultrafast phenomena, Mechanical engineering

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The matchless properties of ultrashort laser pulses, such as the enabling of cold processing and non-linear absorption, pave the way to numerous novel applications. Ultrafast lasers arrived in the last decade at a level of reliability suitable for the industrial environment.¹ Within the next years many industrial manufacturing processes in several markets will be replaced by laser-based processes due to their well-known benefits: These are non-contact wear-free processing, higher process accuracy or an increase of processing speed and often improved economic efficiency compared to conventional processes. Furthermore, new processes will arise with novel sources, addressing previously unsolved challenges. One technical requirement for these exciting new applications will be to optimize the large number of available parameters to the requirements of the application.

In this work we present an ultrafast laser system distinguished by its capability to combine high flexibility and real time process-inherent adjustments of the parameters with industry-ready reliability. This industry-ready reliability is ensured by a long experience in designing and building ultrashort-pulse lasers in combination with rigorous optimization of the mechanical construction, optical components and the entire laser head for continuous performance. By introducing a new generation of mechanical design in the last few years, TRUMPF enabled its ultrashort-laser platforms to fulfill the very demanding requirements for passively coupling high-energy single-mode radiation into a hollow-core transport fiber. The laser architecture presented here is based on the all fiber MOPA (master oscillator power amplifier) CPA (chirped pulse amplification) technology. The pulses are generated in a high repetition rate mode-locked fiber oscillator also enabling flexible pulse bursts (groups of multiple pulses) with 20 ns intra-burst pulse separation. An external acousto-optic modulator (XAOM) enables linearization and multi-level quad-loop stabilization of the output power of the laser.² In addition to the well-established platform latest developments addressed single-pulse energies up to 50 μJ and made femtosecond pulse durations available for the TruMicro Series 2000.

Beyond these stabilization aspects this laser architecture together with other optical modules and combined with smart laser control software enables process-driven adjustments of the parameters (e. g. repetition rate, multi-pulse functionalities, pulse energy, pulse duration) by external signals, which will be presented in this work.

Proceedings Article | 22 February 2017 Paper

Beam shaping as an enabler for new applications

Yvonne Guertler, Max Kahmann, David Havrilla

Proceedings Volume 10097, 1009706 (2017) https://doi.org/10.1117/12.2252345

KEYWORDS: Beam shaping, Laser cutting, Laser applications, Absorption, Laser processing, Pulsed laser operation, Diagnostics, Laser sources, Glasses, Transient nonlinear optics

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Proceedings Article | 17 February 2017 Paper

Ultra-short pulse delivery at high average power with low-loss hollow core fibers coupled to TRUMPF's TruMicro laser platforms for industrial applications

S. Baumbach, S. Pricking, J. Overbuschmann, S. Nutsch, J. Kleinbauer, R. Gebs, C. Tan, R. Scelle, M. Kahmann, A. Budnicki, D. Sutter, A. Killi

Proceedings Volume 10094, 100941H (2017) https://doi.org/10.1117/12.2250753

KEYWORDS: Polarization, Optical fibers, Ultrafast lasers, Ultrafast phenomena, Laser systems engineering, Silica, Fiber coupled lasers, Pulsed laser operation, Laser applications, Materials processing, Laser ablation, Fiber lasers, Laser cutting, Laser sources

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Proceedings Article | 9 March 2016 Paper

Non-infrared femtosecond lasers: status and prospects

Max Kahmann, Raphael Gebs, Robert Fleischhaker, Ivo Zawischa, Jochen Kleinbauer, Simone Russ, Lara Bauer, Uwe Keller, Birgit Faisst, Aleksander Budnicki, Dirk Sutter

Proceedings Volume 9740, 97400T (2016) https://doi.org/10.1117/12.2212101

KEYWORDS: Pulsed laser operation, Femtosecond phenomena, Ultrafast lasers, Metals, Micromachining, Reliability, Laser applications, Laser processing, Copper, Laser ablation, Picosecond phenomena, Electrons

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Proceedings Article | 9 March 2015 Paper

Laser based metal and plastics joining for lightweight design

Max Kahmann, Ulf Quentin, Marc Kirchhoff, Rüdiger Brockmann, Klaus Löffler

Proceedings Volume 9356, 93560F (2015) https://doi.org/10.1117/12.2076382

KEYWORDS: Metals, Pulsed laser operation, Manufacturing, Laser applications, Aluminum, Laser development, Laser systems engineering, Carbon dioxide lasers, Laser processing, Resistance

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Showing 5 of 11 publications

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