Highest data rates for AI & Co.: Johann Philipp Reis Prize honors research into new fiber optics

November 7, 2025

Transmitting more data via fiber optics – that is the research motto of Prof. Georg Rademacher, director of the Institute for Electrical and Optical Communication Engineering.
[Picture: Stadt Gelnhausen]

Today, 99.9 percent of data worldwide already runs over fiber optics, but existing capacities will not be sufficient in the future to handle the exponential growth in data traffic. Prof. Georg Rademacher has been researching ways to massively increase the performance of optical fiber optic networks for over ten years. For example, through methods such as space division multiplexing (SDM), which enable extremely high data rates—a key technology for the future of artificial intelligence, digitalization, and data centers.

Since April 2023, Rademacher is Director of the Institute for Electrical and Optical Communication Engineering at the University of Stuttgart. He has launched several consortium projects in Germany to develop practical application scenarios for modern fiber optics.

Rademacher has now been awarded the Johann Philipp Reis Prize for his outstanding achievements. The prize, worth EUR 10,000,  is awarded for significant innovations in communications technology that have had or are expected to have an impact on the economy. The winners are selected by experts from the Information Technology Society within the VDE. VDE is one of the largest technology organizations in Europe.

The Johann Philipp Reis Prize is sponsored by the municipalities of Gelnhausen and Friedrichsdorf, where the namesake Reis lived, as well as Deutsche Telekom AG and the Information Technology Society within the VDE (VDE ITG). f.l.t.r.: Lars Keitel (Mayor of Friedrichsdorf), Volker Rode (First Deputy Mayor of Gelnhausen), Prof. Georg Rademacher, Dr. Kristina Both (Deutsche Telekom AG), Dr. Martin Hieber (VDE Executive Board Member for Technology and Networks/CTO).

VDE Press release

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