Fraunhofer-Institut für Lasertechnik ILT

Steinbachstr 15
Aachen D-52074
Germany
49-241-8906-0
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Fraunhofer Institute for Laser Technology ILT is worldwide one of the most important development and contract research institutes of its specific field.

Press Releases

© Fraunhofer ILT, Aachen, Germany.
Dr. Jochen Stollenwerk, Acting Director of Fraunhofer ILT (left), and Dr. Seog-Hyeon Ryu, President of KIMM, during the signing of the renewed Memorandum of Understanding on July 16, 2026, in Aachen.
The Fraunhofer Institute for Laser Technology ILT and the Korea Institute of Machinery and Materials KIMM have been cooperating for many years on projects ranging from laser welding...
© Fraunhofer ILT, Aachen, Germany / Ralf Baumgarten
In an array consisting of 20 rows, each with 100 individually controllable laser foci, Rydberg atoms can be positioned at the required distance of 3.5 µm from one another. To achieve this, the setup—comprising cascading beam splitters, acousto-optic deflectors, lenses, and mirrors—splits four initially incoming laser beams into 2,000 individually controllable beams.
Fraunhofer ILT in Aachen has developed a highly complex laser-optical system for a quantum computer currently under construction at the 5th Institute of Physics at the University...
© Fraunhofer ILT, Aachen, Germany / Andreas Steindl.
From April 22 to 24, 2026, the AKL’26—International Laser Technology Congress—took place in Aachen. There, more than 90 speakers briefed the 544 experts on the current state of in-dustrial laser technology.
Increasing levels of automation and new applications are currently shaping industrial laser technology. High-performance lasers and photonic technologies are opening up new growth...
© Fraunhofer ILT, Aachen, Germany.
Dr. Alexander Olowinsky of Fraunhofer ILT will moderate the seventh Laser Symposium Electromobility. LSE’26 focuses on robust laser processes, measurable quality, and fast cycle times for battery and e-mobility manufacturing.
Battery manufacturers face mounting pressure to reduce scrap, cut energy consumption, shorten cycle times, make better use of materials and ensure the quality of every connection...
© Fraunhofer ILT, Aachen, Germany / Andreas Steindl.
The second day of AKL’26 began with the Gerd Herziger session. Leading representatives from industry and academia gathered to discuss the future technological direction of high-power and high-energy lasers.
Lasers are ubiquitous. They have become indispensable across all industries: from data centers and telecommunications, clinical diagnostics and therapy, the increasing production...

Articles

(Photo credit: Fraunhofer ILT, Aachen, Germany)
Using custom optics, the laser radiates a larger area on the copper foil coated with graphite paste. The interaction between the graphite particles and the light energy generates heat and the liquid evaporates.
As startups and global transportation manufacturers continue to explore and make commitments to expand e-mobility, improving batteries ultimately takes center stage.
(Image credit: Infineon Technologies)
German chipmaker Infineon Technologies applies several different approaches to develop qubits based on its own chip technologies.
Industrial quantum technology was a big topic at the International Laser Technology Congress AKL ‘22 in Aachen, Germany.
(Courtesy of Frank Lison, Toptica)
The booth parties at LASER World of PHOTONICS 2022 were plenty and crowded.
Germany’s biggest photonics trade show came back this year with plenty of new technology. Beyond all the fancy quantum programs, there are several surprising trends in areas including...
(© Fraunhofer ILT, Aachen, Germany/Volker Lannert)
FIGURE 1. In 1996, Fraunhofer ILT had the process for metallic 3D printing patented; shown is the laser powder-bed fusion (LPBF) exposure process.
How Europe's largest center for applied laser research is morphing from laser engineering to systems engineering.
© Fraunhofer ILT, Aachen, Germany
The gripper arm, which is the central tool for the high-precision alignment of space components, consists of a static and a moving part.
The gripper arm, made using a novel 3D printing process, is lighter than its predecessor and yet stable enough to mount and adjust heavier laser optics with ultra-precision.
Fraunhofer ILT
Significant increases in energy efficiency and output power for laser bars are the result of the EKOLAS research project.
The Efficient High-Performance Laser Beam Sources (EffiLAS) association has a project, EKOLAS, aimed at producing next-gen laser bars.
Conard Holton2
Innovation and leadership will be the keys to successful short- and long-term responses to the pandemic.
(Courtesy of Fraunhofer ILT)
FIGURE 1. The diode-pumped Innoslab design can be upscaled to 5 kW average power with 800 fs pulses.
Ultrafast lasers offer two unique advantages: The highest precision in material processing and the ability to process almost every material.
Fraunhofer Institute for Laser Technology ILT
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The Fraunhofer Institute for Laser Technology ILT has canceled the Aachen, Germany based International Laser Technology Congress AKL'20 due to the spread of Covid-19.
Photonics21
A new study (portion of cover image for the report shown here) describes how photonics-based technologies will be instrumental in reducing carbon-dioxide pollutants.
According to a new study supported by Photonics21 and several other photonics institutions, photonics technologies can contribute to three billion tons less carbon dioxide per...

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Additional content from Fraunhofer-Institut für Lasertechnik ILT

FIGURE 1. A 500 W-class Innoslab amplifier in a seven-pass configuration with gain = 53 (top) and a 500 W-class, single-pass Innoslab power booster with gain = 2 (bottom) are shown.
Scaling picosecond and femtosecond laser sources and process technology to 10 kW and beyond.
Fraunhofer ILT, Aachen, Germany
Dr. Constantin Häfner.
Effective November 2019, laser physicist Dr. Constantin Häfner will be taking on the Directorship of Fraunhofer ILT in Aachen, Germany. He is currently Program Director for Advanced...
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As opposed to conventional coatings that can show pores and cracks, the coating from the laser process remains intact.
(Courtesy of Andreas Thoss)
Reinhart Poprawe with some of his 200 PhD students.
After 23 years shaping industrial laser technology development in Germany and worldwide, Reinhart Poprawe retires from Fraunhofer ILT and RWTH Aachen University.
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Reinhart Poprawe is retiring from his positions as director of the Fraunhofer Institute for Laser Technology ILT and from his Chair of Laser Technology at RWTH Aachen University...
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Attendees of the UKP Workshop in Aachen, Germany discussed raising the power of ultrafast lasers to the levels at which continuous-wave lasers now do cutting and welding.
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Used with an ultrafast laser, a diffractive optical element generates more than 200 beamlets, allowing drilling of more than 12,000 holes per second.
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An all-fiber amplifier setup coherently combines four separately amplified beams; pulse duration is 430 fs.
(Courtesy of FBH)
FIGURE 1. Shown is the structure of a typical diode laser (a); the inset shows the triple-asymmetric active region where the laser radiation is generated. The active diode structures of even high-power diode lasers are quite small, as revealed by a close-up photo (b).
R&D at Berlin Adlershof has resulted in design improvements for high-power diode lasers that are boosting efficiency, peak power, brilliance, and range of emission spectra.
Courtesy Fraunhofer ILT
From September 12-13, experts from all over the world will meet for the third time in Aachen for the Conference on Laser Polishing – LaP.
The Fraunhofer ILT will again host the LaP on September 12-13.
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12 institutes to develop a whole new laser generation for industry and research
Courtesy Fraunhofer ILT/ Andreas Steindl
The finalists of the Innovation Award Laser Technology 2018: 1st prize for the team around Axel Luft, Laserline (front, 4.f.l.), 2nd prize for the team around Gerald Jenke, Saueressig (back, right) and 3rd prize for the team around Alejandro Bárcena, Talens Systems (back, 2.f.l.), presented by. Reinhart Poprawe, Fraunhofer ILT (front, left), Alexander Olowinsky, ELI (back, 4.f.l.) and Ulrich Berners, Arbeitskreis Lasertechnik (front, right).
At this year’s AKL–International Laser Technology Congress visitors had the chance to see where industrial laser technology will be tomorrow.