Testbeds
Map of Germany
Testbed Map for Quantum Communication in Germany
SQuaD is the central point of contact for the expertise and infrastructure of Quantum Communication in Germany. For this purpose, actors from research and industry are brought together and the existing research set-ups of the partners are expanded to include public use of testbeds for Quantum Communication Technology.
The testbed map shows the locations in Germany where testbeds in the field of Quantum Communication exist or are planned. An overview and explanation of the icons used in the map can be found here.
If your existing or required testbed is not yet included in the map, please contact us at squad@ptb.de.
Total length: about 6 kilometers
Location: University of Ulm, Ulm – German Aerospace Center (DLR), Institute of Quantum Technologies, Ulm
Wavelength: o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: University of Ulm and German Aerospace Center (DLR)
Institution: University of Ulm and German Aerospace Center (DLR)
Contact: Joachim Ankerhold, Matthias Zimmermann, Kaisa Laiho
Status: active
Location: University of Ulm, Ulm – German Aerospace Center (DLR), Institute of Quantum Technologies, Ulm
Wavelength: o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: University of Ulm and German Aerospace Center (DLR)
Institution: University of Ulm and German Aerospace Center (DLR)
Contact: Joachim Ankerhold, Matthias Zimmermann, Kaisa Laiho
Status: active
Total length: < 1 kilometer
Location: Dresden University of Technology, Dresden
Wavelength: 1550 nm and 850 nm
Type of Transmission: dark fiber
Operator: Dresden University of Technology
Institution: Dresden University of Technology
Contact: Ashwin Raju, Muhammad Idham Habibie
Status: active
Location: Dresden University of Technology, Dresden
Wavelength: 1550 nm and 850 nm
Type of Transmission: dark fiber
Operator: Dresden University of Technology
Institution: Dresden University of Technology
Contact: Ashwin Raju, Muhammad Idham Habibie
Status: active
Total length: about 38.000 kilometers
Location: GEO Satellite Alphasat (Position (25° E) – Optical Ground Station (T‑AOGS), Zimmerwald [CH]
Wavelength: 1064 nm
Type of Transmission: free space optics
Operator: TESAT and Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Institution: TESAT and Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Contact: Fabian Reichert, Thomas Marynowski, Michael Lutzer
Status: active
Location: GEO Satellite Alphasat (Position (25° E) – Optical Ground Station (T‑AOGS), Zimmerwald [CH]
Wavelength: 1064 nm
Type of Transmission: free space optics
Operator: TESAT and Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Institution: TESAT and Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Contact: Fabian Reichert, Thomas Marynowski, Michael Lutzer
Status: active
Total length: about 50 kilometers
Location: Jena – Dresden
Wavelength: n/a
Type of Transmission: fiber
Operator: n/a
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Contact: Thorsten Goebel
Status: planned
Location: Jena – Dresden
Wavelength: n/a
Type of Transmission: fiber
Operator: n/a
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Contact: Thorsten Goebel
Status: planned
Total length: about 24 kilometers
Location: Erfurt – Sundhausen – Nordhausen
Wavelength: n/a
Type of Transmission: fiber
Operator: n/a
Institution: Microelectronic and Optical Systems for Biomedicine (MEOS)
Contact: Thorsten Goebel, Thomas Hühn
Status: active
Location: Erfurt – Sundhausen – Nordhausen
Wavelength: n/a
Type of Transmission: fiber
Operator: n/a
Institution: Microelectronic and Optical Systems for Biomedicine (MEOS)
Contact: Thorsten Goebel, Thomas Hühn
Status: active
Total length: Please refer to the PDF fact sheet for more information
Location: Physikalisch-Technische Bundesanstalt (PTB), Braunschweig
Wavelength: PTB Calibration and Measurement Capabilities for QKD
Type of Transmission: component calibration and characterization
Operator: Physikalisch-Technische Bundesanstalt (PTB)
Institution: Physikalisch-Technische Bundesanstalt (PTB)
Contact: Stefan Kück, Nicolas Spethmann
Status: active
Location: Physikalisch-Technische Bundesanstalt (PTB), Braunschweig
Wavelength: PTB Calibration and Measurement Capabilities for QKD
Type of Transmission: component calibration and characterization
Operator: Physikalisch-Technische Bundesanstalt (PTB)
Institution: Physikalisch-Technische Bundesanstalt (PTB)
Contact: Stefan Kück, Nicolas Spethmann
Status: active
Total length: 14 km (one-way), 28 km (looped test)
Location: Physikalisch-Technische Bundesanstalt (PTB), Braunschweig – Rolleiwerke GmbH, Braunschweig
Wavelength: 1550 +/- 20 nm
Type of Transmission: dark fiber
Operator: Physikalisch-Technische Bundesanstalt (PTB)
Institution: Physikalisch-Technische Bundesanstalt (PTB)
Contact: Sebastian Koke, Nicolas Spethmann
Status: active
Location: Physikalisch-Technische Bundesanstalt (PTB), Braunschweig – Rolleiwerke GmbH, Braunschweig
Wavelength: 1550 +/- 20 nm
Type of Transmission: dark fiber
Operator: Physikalisch-Technische Bundesanstalt (PTB)
Institution: Physikalisch-Technische Bundesanstalt (PTB)
Contact: Sebastian Koke, Nicolas Spethmann
Status: active
Total length: various
Location: Technical University of Darmstadt, Institute for Applied Physics, Damstadt – Technical University of Darmstadt, CYSEC, Darmstadt – Deutsche Telekom Technik GmbH, Darmstadt – GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt
Wavelength: c‑band (around 1550 nm)
Type of Transmission: fiber
Operator: Technical University of Darmstadt and Deutsche Telekom Technik GmbH
Institution: Technical University of Darmstadt and Deutsche Telekom Technik GmbH
Contact: Thomas Walther, Oleg Nikiforov
Status: active
Location: Technical University of Darmstadt, Institute for Applied Physics, Damstadt – Technical University of Darmstadt, CYSEC, Darmstadt – Deutsche Telekom Technik GmbH, Darmstadt – GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt
Wavelength: c‑band (around 1550 nm)
Type of Transmission: fiber
Operator: Technical University of Darmstadt and Deutsche Telekom Technik GmbH
Institution: Technical University of Darmstadt and Deutsche Telekom Technik GmbH
Contact: Thomas Walther, Oleg Nikiforov
Status: active
Total length: < 1 kilometer
Location: Fraunhofer Institute for Integrated Circuits (IIS), Division Engineering of Adaptive Systems (EAS), Dresden
Wavelength: 810 nm; o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: fiber
Operator: Fraunhofer EAS
Institution: Fraunhofer EAS
Contact: Stefan Krause, Mandy Grobosch
Status: active
Location: Fraunhofer Institute for Integrated Circuits (IIS), Division Engineering of Adaptive Systems (EAS), Dresden
Wavelength: 810 nm; o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: fiber
Operator: Fraunhofer EAS
Institution: Fraunhofer EAS
Contact: Stefan Krause, Mandy Grobosch
Status: active
Total length: about 26 kilometers (from Lise Meitner House to T‑Labs) (fiber), about 8.3 kilometers (from T‑Labs to Fraunhofer Heinrich Hertz Institute (HHI)) (fiber) and about 3.1 kilometers (from Fraunhofer Heinrich-Hertz-Institut (HHI) to T‑Labs) (free space)
Location: Lise Meitner House, Berlin – T‑Labs (Deutsche Telekom AG), Berlin – Fraunhofer Heinrich Hertz Institute (HHI), Berlin
Wavelength: dark fiber (no restrictions)
Type of Transmission: fiber and free space optics link between Fraunhofer Heinrich Hertz Institute (HHI) and T‑Labs, fiber link between Lise Meitner House and T‑Labs
Operator: Humboldt University (HU) of Berlin, T‑Labs (Deutsche Telekom AG) and Fraunhofer Heinrich Hertz Institute (HHI), Berlin
Institution: Humboldt University (HU) of Berlin, T‑Labs (Deutsche Telekom AG) and Fraunhofer Heinrich Hertz Institute (HHI)
Contact: Marc Geitz, Nicolas Perlot
Status: active
Location: Lise Meitner House, Berlin – T‑Labs (Deutsche Telekom AG), Berlin – Fraunhofer Heinrich Hertz Institute (HHI), Berlin
Wavelength: dark fiber (no restrictions)
Type of Transmission: fiber and free space optics link between Fraunhofer Heinrich Hertz Institute (HHI) and T‑Labs, fiber link between Lise Meitner House and T‑Labs
Operator: Humboldt University (HU) of Berlin, T‑Labs (Deutsche Telekom AG) and Fraunhofer Heinrich Hertz Institute (HHI), Berlin
Institution: Humboldt University (HU) of Berlin, T‑Labs (Deutsche Telekom AG) and Fraunhofer Heinrich Hertz Institute (HHI)
Contact: Marc Geitz, Nicolas Perlot
Status: active
Total length: about 11 kilometers
Location: various
Wavelength: 780 nm to 1600 nm
Type of Transmission: fiber
Operator: Technical University of Munich (TUM)
Institution: Technical University of Munich (TUM)
Contact: Tobias Vogl
Status: planned
Location: various
Wavelength: 780 nm to 1600 nm
Type of Transmission: fiber
Operator: Technical University of Munich (TUM)
Institution: Technical University of Munich (TUM)
Contact: Tobias Vogl
Status: planned
Total length: about 14 kilometers
Location: Saarland University (UdS), Saarbrücken – University of Applied Sciences (HTW), Saarbrücken
Wavelength: o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: Saarland University (UdS) and VSE NET GmbH
Institution: Saarland University (UdS)
Contact: Jürgen Eschner, Christoph Becher
Status: active
Location: Saarland University (UdS), Saarbrücken – University of Applied Sciences (HTW), Saarbrücken
Wavelength: o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: Saarland University (UdS) and VSE NET GmbH
Institution: Saarland University (UdS)
Contact: Jürgen Eschner, Christoph Becher
Status: active
Total length: about 76 kilometers
Location: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena – Fraunhofer Center for Microelectronic and Optical Systems for Biomedicine (MEOS), Erfurt
Wavelength: c‑band (1550 nm)
Type of Transmission: fiber
Operator: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Fraunhofer Center for Microelectronic and Optical Systems for Biomedicine (MEOS)
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Fraunhofer Center for Microelectronic and Optical Systems for Biomedicine (MEOS)
Contact: Natasa Pavlovic, Fabian Steinlechner
Status: active
Location: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena – Fraunhofer Center for Microelectronic and Optical Systems for Biomedicine (MEOS), Erfurt
Wavelength: c‑band (1550 nm)
Type of Transmission: fiber
Operator: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Fraunhofer Center for Microelectronic and Optical Systems for Biomedicine (MEOS)
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Fraunhofer Center for Microelectronic and Optical Systems for Biomedicine (MEOS)
Contact: Natasa Pavlovic, Fabian Steinlechner
Status: active
Total length: 1 kilometer
Location: Abbe Center of Photonics (ACP), Jena – Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena
Wavelength: c‑band (1550 nm), o‑band (1300 nm)
Type of Transmission: dark fiber
Operator: Beutenberg e.V.
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Friedrich Schiller University (FSU) Jena
Contact: Natasa Pavlovic, Fabian Steinlechner
Status: active
Location: Abbe Center of Photonics (ACP), Jena – Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena
Wavelength: c‑band (1550 nm), o‑band (1300 nm)
Type of Transmission: dark fiber
Operator: Beutenberg e.V.
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Friedrich Schiller University (FSU) Jena
Contact: Natasa Pavlovic, Fabian Steinlechner
Status: active
Total length: about 1.7 kilometers
Location: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena – Public utilities Jena, Jena
Wavelength: 500 nm to 2 µm (810 nm, 1550 nm etc.)
Type of Transmission: dark fiber
Operator: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Public utilities Jena
Contact: Matthias Goy, Fabian Steinlechner
Status: active
Location: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena – Public utilities Jena, Jena
Wavelength: 500 nm to 2 µm (810 nm, 1550 nm etc.)
Type of Transmission: dark fiber
Operator: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Public utilities Jena
Contact: Matthias Goy, Fabian Steinlechner
Status: active
Total length: 1 kilometer
Location: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena
Wavelength: n/a
Type of Transmission: optical ground station for satellite or aircraft communication
Operator: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Contact: Matthias Goy, Fabian Steinlechner
Status: active
Location: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF), Jena
Wavelength: n/a
Type of Transmission: optical ground station for satellite or aircraft communication
Operator: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Institution: Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Contact: Matthias Goy, Fabian Steinlechner
Status: active
Total length: Please refer to the PDF fact sheet for more information
Location: various
Wavelength: c‑band (1550 nm), 800 nm
Type of Transmission: dark fiber
Operator: University of the Bundeswehr Munich (UniBw M) (fiber) and Ludwig Maximilian University of Munich (LMU) (free space optics)
Institution: University of the Bundeswehr Munich (UniBw M) and Ludwig Maximilian University of Munich (LMU)
Contact: Nils gentschen Felde, Fabian Farina
Status: planned / partially in operation
Location: various
Wavelength: c‑band (1550 nm), 800 nm
Type of Transmission: dark fiber
Operator: University of the Bundeswehr Munich (UniBw M) (fiber) and Ludwig Maximilian University of Munich (LMU) (free space optics)
Institution: University of the Bundeswehr Munich (UniBw M) and Ludwig Maximilian University of Munich (LMU)
Contact: Nils gentschen Felde, Fabian Farina
Status: planned / partially in operation
Total length: about 78 kilometers
Location: Leibniz University of Hanover (LUH), Hanover – Physikalisch-Technische Bundesanstalt (PTB), Braunschweig
Wavelength: c‑band (1530 to 1565 nm)
Type of Transmission: dark fiber
Operator: Physikalisch-Technische Bundesanstalt (PTB) and Leibniz University of Hanover (LUH)
Institution: Leibniz University of Hanover (LUH) and Physikalisch-Technische Bundesanstalt (PTB)
Contact: Stefan Kück, Fei Ding
Status: active
Location: Leibniz University of Hanover (LUH), Hanover – Physikalisch-Technische Bundesanstalt (PTB), Braunschweig
Wavelength: c‑band (1530 to 1565 nm)
Type of Transmission: dark fiber
Operator: Physikalisch-Technische Bundesanstalt (PTB) and Leibniz University of Hanover (LUH)
Institution: Leibniz University of Hanover (LUH) and Physikalisch-Technische Bundesanstalt (PTB)
Contact: Stefan Kück, Fei Ding
Status: active
Total length: about 9 kilometers
Location: Heinz Nixdorf Institute (HNI), Paderborn – Paderborn University, Paderborn
Wavelength: all Telekom bandwidths
Type of Transmission: dark fiber
Operator: PhoQS
Institution: Paderborn University
Contact: Klaus Jöns, Tim Bartley, Christoph Scheytt, Christine Silberhorn
Status: active
Location: Heinz Nixdorf Institute (HNI), Paderborn – Paderborn University, Paderborn
Wavelength: all Telekom bandwidths
Type of Transmission: dark fiber
Operator: PhoQS
Institution: Paderborn University
Contact: Klaus Jöns, Tim Bartley, Christoph Scheytt, Christine Silberhorn
Status: active
Total length: 4 kilometers (fiber), < 1 kilometer (free space optics)
Location: Technical University (TU), Main building, Berlin – Technical University (TU), Eugene-Paul-Wigner building, Berlin – Technical University (TU), Main building, Berlin
Wavelength: o-/c‑band (1310 to 1550 nm) (optical fiber), 780 to 950 nm (telescope link)
Type of Transmission: various
Operator: Tobias Heindel
Institution: Technical University (TU) of Berlin and University of Münster
Contact: Tobias Heindel
Status: active
Location: Technical University (TU), Main building, Berlin – Technical University (TU), Eugene-Paul-Wigner building, Berlin – Technical University (TU), Main building, Berlin
Wavelength: o-/c‑band (1310 to 1550 nm) (optical fiber), 780 to 950 nm (telescope link)
Type of Transmission: various
Operator: Tobias Heindel
Institution: Technical University (TU) of Berlin and University of Münster
Contact: Tobias Heindel
Status: active
Total length: about 7 kilometers
Location: German Aerospace Center (DLR), Oberpfaffenhofen – Telecommunications Tower Schöngeising FFB, Schöngeising
Wavelength: VIS, 589 nm, 850 nm, 1064 nm, 1550 nm
Type of Transmission: free space optics
Operator: DLR Institute for Communications and Navigation
Institution: DLR Institute for Communications and Navigation
Contact: Florian Moll
Status: active
Location: German Aerospace Center (DLR), Oberpfaffenhofen – Telecommunications Tower Schöngeising FFB, Schöngeising
Wavelength: VIS, 589 nm, 850 nm, 1064 nm, 1550 nm
Type of Transmission: free space optics
Operator: DLR Institute for Communications and Navigation
Institution: DLR Institute for Communications and Navigation
Contact: Florian Moll
Status: active
Total length: 1 kilometer
Location: German Aerospace Center (DLR), Oberpfaffenhofen
Wavelength: VIS, 589 nm, 850 nm, 1064 nm, 1550 nm
Type of Transmission: optical ground station for satellite or aircraft communication
Operator: DLR Institute for Communications and Navigation
Institution: DLR Institute for Communications and Navigation
Contact: Florian Moll
Status: active
Location: German Aerospace Center (DLR), Oberpfaffenhofen
Wavelength: VIS, 589 nm, 850 nm, 1064 nm, 1550 nm
Type of Transmission: optical ground station for satellite or aircraft communication
Operator: DLR Institute for Communications and Navigation
Institution: DLR Institute for Communications and Navigation
Contact: Florian Moll
Status: active
Total length: 10 kilometer loop (about 20 kilometers with circulator)
Location: Fraunhofer Institute for Integrated Circuits (IIS), Division Engineering of Adaptive Systems (EAS), Dresden – Fraunhofer Institute for Transportation and Infrastructure Systems (IVI), Dresden
Wavelength: o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: Fraunhofer EAS
Institution: Fraunhofer EAS
Contact: Stefan Krause, Mandy Grobosch
Status: active
Location: Fraunhofer Institute for Integrated Circuits (IIS), Division Engineering of Adaptive Systems (EAS), Dresden – Fraunhofer Institute for Transportation and Infrastructure Systems (IVI), Dresden
Wavelength: o‑band (1310 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: Fraunhofer EAS
Institution: Fraunhofer EAS
Contact: Stefan Krause, Mandy Grobosch
Status: active
Total length: about 22 kilometers
Location: South Campus of the Karlsruhe Institute of Technology (KIT), Karlsruhe – North Campus of the Karlsruhe Institute of Technology (KIT), Karlsruhe
Wavelength: o‑band (1330 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: Karlsruhe Institute of Technology (KIT) and TelemaxX
Institution: Karlsruhe Institute of Technology (KIT)
Contact: David Hunger, Sebastian Randel
Status: active
Location: South Campus of the Karlsruhe Institute of Technology (KIT), Karlsruhe – North Campus of the Karlsruhe Institute of Technology (KIT), Karlsruhe
Wavelength: o‑band (1330 nm) to c‑band (1550 nm)
Type of Transmission: dark fiber
Operator: Karlsruhe Institute of Technology (KIT) and TelemaxX
Institution: Karlsruhe Institute of Technology (KIT)
Contact: David Hunger, Sebastian Randel
Status: active
Total length: about 8 kilometers
Location: Deutsche Telekom AG, T‑Labs, Berlin – Bundesdruckerei GmbH, Berlin
Wavelength: λ = 1550 nm
Type of Transmission: dark fiber
Operator: T‑Labs and Bundesdruckerei
Institution: T‑Labs and Bundesdruckerei
Contact: Oliver Muth, Richard Schilling
Status: active
Location: Deutsche Telekom AG, T‑Labs, Berlin – Bundesdruckerei GmbH, Berlin
Wavelength: λ = 1550 nm
Type of Transmission: dark fiber
Operator: T‑Labs and Bundesdruckerei
Institution: T‑Labs and Bundesdruckerei
Contact: Oliver Muth, Richard Schilling
Status: active
Total length: about 18 kilometers
Location: University of Stuttgart, Stuttgart – Deutsche Telekom AG, Stuttgart
Wavelength: related to the standard single mode fiber, including o‑, e‑, s‑, c‑, l‑, and u‑bands
Type of Transmission: dark fiber
Operator: Deutsche Telekom, R&D SASER TestNet and University of Stuttgart
Institution: Deutsche Telekom, R&D SASER TestNet and University of Stuttgart
Contact: Marc Geitz, Peter Michler, Simone Portalupi, Ralf-Peter Braun
Status: active
Location: University of Stuttgart, Stuttgart – Deutsche Telekom AG, Stuttgart
Wavelength: related to the standard single mode fiber, including o‑, e‑, s‑, c‑, l‑, and u‑bands
Type of Transmission: dark fiber
Operator: Deutsche Telekom, R&D SASER TestNet and University of Stuttgart
Institution: Deutsche Telekom, R&D SASER TestNet and University of Stuttgart
Contact: Marc Geitz, Peter Michler, Simone Portalupi, Ralf-Peter Braun
Status: active
Testbed Information Sheets
The umbrella project for Quantum Communication in Germany (SQuaD) aims to provide a structured service for the testbed infrastructure available in Germany. To this end, a comprehensive service catalog has been created, offering a detailed overview of the testbeds listed above, which is available here for download.
Additionally, each testbed has a fact sheet that summarizes the key information about the facility in a clear and concise manner. These information sheets can be accessed via the table below.
Parallel to the already existing testbed infrastructure, several initiatives and projects are ongoing to extend the testbed infrastructure in Germany. The initiative for the establishment of a fiber optic backbone for Quantum Communication and time and frequency distribution in Germany is introduced here.
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