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The Fraunhofer Heinrich-Hertz-Institut (HHI) has launched the OPTIMUX project, focusing on optimal multiplexing strategies for fiber optic data transmission using spatial multiplexing. The project is funded by the German Federal Ministry of Education and Research (BMBF) and runs from November 2024 to October 2027. Research efforts concentrate on two key areas: Electrical Analog Multiplexing (AMUX) and Optical Spatial Division Multiplexing (SDM), as well as their synergetic interaction.
The rapid advancement of digitalization and the rise of data-driven applications are pushing existing network infrastructure to its limits. While wavelength division multiplexing is a commonly used method, spatial multiplexing offers a new approach to network optimization. By utilizing multiple fiber cores and transmission modes, it significantly increases capacity.
The OPTIMUX project is dedicated to developing innovative and efficient multiplexing solutions across the entire transmission path, from transmitter to receiver. As part of the project, Fraunhofer HHI is spearheading the development of a broadband analog multiplexer (AMUX), a key technology in transmission systems. Targeting symbol rates of up to 300 GBd, this advancement represents a major step toward more efficient optical data transmission.
Simultaneously, researchers are setting up an SDM transmission test bed to study components interaction and digital processing for SDM systems, particularly in the MIMO domain, to maximize transmission efficiency and performance.
“By closely integrating analog and spatial multiplexing, we will significantly increase the efficiency of optical data transmission,” explains Jonathan Andree, project manager at Fraunhofer HHI. “Our system studies will demonstrate how these technologies can work synergistically to achieve very high data rates by simultaneously increasing serial and parallel system capacity.”
The OPTIMUX project aims to provide groundbreaking insights for the next generation of optical transmission systems. At the project’s conclusion, a representative feasibility demonstration of the OPTIMUX transmission system is planned to validate its applications under realistic conditions.
“With these experiments, we aim to test the newly developed components under realistic conditions, paving the way for rapid market adoption,” adds Jonathan Andree.
OPTIMUX is being conducted in collaboration with academic partners from the University of Stuttgart and the Karlsruhe Institute of Technology (KIT), alongside industrial partners Heraeus Covantics, VPIphotonics, and Coriant.
Jonathan Andree
Research Associate
Phone +49 30 31002-591
jonathan.andree@hhi.fraunhofer.de
https://www.hhi.fraunhofer.de/en/departments/pn/projects/optimux.html
OPTIMUX project
© AdobeStock/milkyway
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OPTIMUX project
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