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The “AKL’24 - International Laser Technology Congress” took place in Aachen from April 17 to 19, 2024. For the 14th time, the congress provided a platform for an intensive professional exchange on current technology trends and perspectives in laser technology. In addition to three forums and nine sessions with a total of 82 specialist presentations, the 525 participants from 21 countries had access to a fully booked exhibition with 58 companies and 60 “Laser Technology Live” demonstrations in the laboratories of the Fraunhofer Institute for Laser Technology ILT and RWTH Aachen University. Two evening events and the deliberately relaxed schedule on the three days of the congress invited participants to network. In short: AKL’24 was the place to be for the laser community.

From energy research to metalworking: Everywhere, the laser offers opportunities to do more for a sustainable future. Today, lasers are already being used to weld battery cells for electromobility particularly efficiently. The laser can be used to measure pollutants in the atmosphere, and it is being used to build the quantum internet. The Fraunhofer Institute for Laser Technology ILT presented these and other innovations at this year’s LASER World of PHOTONICS and World of QUANTUM in Munich.

Ultra-short pulsed (USP) lasers are versatile tools in laser materials processing, but work even more efficiently when the laser pulses are optimally manipulated in space and time. How important this is for the new high-power sources with 300 W and more could be experienced at the “7th UKP Workshop Ultrafast Laser Technology” in Aachen. Visitors could also see how USP lasers make the electrodes of batteries for electric cars or hydrogen systems significantly more efficient.

Every two years, the “UKP Workshop” gives its visitors a sneak peek into the current state of this innovative laser technology. It will be that time again: On April 26 and 27, 2023, the ultrafast laser community will meet in Aachen. In addition to presenting the state of the art in kW beam sources, the workshop will focus on process development and future markets for laser material processing. For two days, experts from research and industry will exchange ideas – finally in live personal contact again.

Together with Hamamatsu, the Fraunhofer Institute for Laser Technology ILT in Aachen has set up an application lab for advanced laser material processing with ultrashort pulsed (USP) laser radiation. In Aachen, the partners jointly developed an industrial processing SLM-head that can use customized, dynamic beam shaping combined with large laser average output powers for a wide range of applications. The applied, new Spatial Light Modulator from Hamamatsu can be operated up to 150 watts of average output power.

Many industries are ready to break new ground in production with lasers. To do this, users and suppliers must reconcile digitalization and sustainability, ecology and economy. As an important means to this end, lasers can be integrated into the emerging process chains so that they interact with the entire upstream and downstream processes, saving both time and money. The more than 520 participants at the AKL'22 International Laser Technology Congress in Aachen learned how the laser community is already proactively tackling these tasks.

After having to take a pandemic break of four years, the industrial laser technology community met at “AKL'22 – International Laser Technology Congress” in Aachen from May 4 to 6, 2022. The industry is doing well, and the biggest trend is the extensive digitalization of processes. At the same time, common beam sources are being pushed to ever new levels of peak performance. New to the conference program was the Quantum Technology & Photonics Forum, where major German companies presented an amazing range of topics.

The LASER World of PHOTONICS Industry Days took place from June 21 to 24, 2021. With this online event, Messe München – organizer of the world's largest trade show for applied laser technology and photonics – offered its community a high-quality program including market overviews, trend analyses and panel discussions. Industrial laser technology today and tomorrow was one focus of the program.

Ultrafast lasers have become a standard manufacturing tool for the display industry, with even more and even larger applications coming in the next few years. The technology and processes needed for these new applications were presented at the 6th “UKP-Workshop: Ultrafast Laser Technology”, held by the Fraunhofer Institute for Laser Technology ILT in Aachen on April 21 and 22, 2021. Their spectrum ranged from ultra-powerful beam sources to processes that can be used to enlarge the surface of a metal electrode, for the generation of hydrogen, a thousand times.

In the Fraunhofer Cluster of Excellence Advanced Photon Sources CAPS, 13 Fraunhofer Institutes bundle their expertise for the development of laser systems that reach highest powers with ultrashort pulses and the exploration of their application potentials. The Fraunhofer Institutes for Laser Technology ILT in Aachen and for Applied Optics and Precision Engineering IOF in Jena contribute their competence in the development of high-power ultrafast lasers, which is combined in the cluster with the expertise of other Fraunhofer Institutes in the fields of systems technology and applications.