SciTransfer
QModem · Project

Quantum Modem for Connecting Quantum Computers via Standard Optical Fiber Networks

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Imagine two super-advanced computers that speak completely different languages and operate at different speeds. One uses microwave signals in a deep freeze, while the other uses light in a fiber optic cable. This technology acts like a universal translator, allowing these computers to talk to each other over long distances without losing their quantum magic.

By the numbers
100,000x
frequency gap bridged between processors and telecom range
0.9%
transduction efficiency
14.8 MHz
bandwidth
100 kHz
repetition rate
The business problem

What needed solving

Quantum computers are currently trapped in isolated cooling units because their signals cannot travel through standard fiber optic cables. This prevents the scaling of quantum power through networking and parallelization.

The solution

What was built

An integrated microwave-to-optics transducer using lithium niobate on silicon. It converts quantum signals from GHz to THz frequencies for fiber optic transmission.

Audience

Who needs this

Quantum computer manufacturersQuantum network architectsCryogenic hardware engineersSecure communication infrastructure providers
Business applications

Who can put this to work

Quantum Computing
enterprise
Target: Quantum hardware manufacturer

If you are a hardware manufacturer dealing with the physical limits of a single cooling unit — this project developed a quantum modem that enables connectivity and parallelization. This allows you to link separate processors to scale performance beyond a single chip.

Cybersecurity
mid-size
Target: Secure communications provider

If you are a provider dealing with the need for unhackable data transmission — this project developed a transducer that bridges the gap between processors and telecom fibers. This allows quantum information to be routed across vast distances at room temperature.

Data Centers
enterprise
Target: High-performance computing (HPC) operator

If you are an operator dealing with the inability to network quantum processors — this project developed a device with a 14.8 MHz bandwidth. This enables the creation of distributed quantum computing clusters.

Frequently asked

Quick answers

What is the cost or pricing model for this quantum modem?

Based on available project data, no specific pricing or cost per unit is mentioned.

Can this technology be produced at an industrial scale?

Yes, the device couples to a 50-Ω transmission line and can be scaled to a large number of transducers on a single chip.

What is the IP or licensing status of the transducer?

Based on available project data, the specific licensing terms are not provided, though it was developed by QPHOX BV.

How does this integrate with existing fiber networks?

The modem bridges the 100,000x frequency gap between GHz quantum processors and the THz telecom range, allowing data to travel via optical fibers.

What is the timeline for commercial availability?

The project period ended on 2024-06-30, but a specific commercial release date is not listed.

Consortium

Who built it

The project is led by a single SME, QPHOX BV from the Netherlands. With a 100% industry ratio and no university or research institute partners, the project is lean and focused on commercial application rather than academic exploration.

How to reach the team

Contact QPHOX BV via their corporate channels in the Netherlands.

Next steps

Talk to the team behind this work.

Contact us to find similar quantum transduction technologies for your hardware roadmap.