Everlasting
communication security
at scale
We are developing silicon-photonics-based quantum communication modules to secure the world's most critical networks — today and against the threats of tomorrow.
We are developing silicon-photonics-based quantum communication modules to secure the world's most critical networks — today and against the threats of tomorrow.
Xen Quantum is on a mission to make quantum-secure communication accessible and scalable. As algorithms and quantum computers advance, today's encryption standards and approaches face an existential threat. We are building the hardware to ensure that sensitive data remains protected — not just now, but forever.
Founded by a team of quantum physicists and engineers, we are developing practical silicon-photonics-based quantum communication modules that integrate into existing network infrastructure. Our approach combines fundamental security guarantees provided by quantum physics with the manufacturability and scalability of integrated photonics.
A closer look at the photonic devices, fabrication routes, and characterisation work behind our quantum communication modules.
Quantum key distribution (QKD) uses single photons to generate encryption keys that are provably secure for any critical communication. Any attempt to intercept a key disturbs the quantum state of the photons, making eavesdropping immediately detectable. Unlike conventional encryption, QKD security is guaranteed by the laws of physics rather than computational assumptions.
Our patented architecture reduces system complexity at the optical and electronic level, resulting in fewer failure points, lower power consumption, and a design that is suited to CMOS-compatible fabrication.
We use discrete-variable (DV) QKD, encoding information on individual photons, enabling energy-efficient post-processing. DV-QKD is also natively compatible with future quantum network architectures.
This approach enables the design of compact modules that integrate directly with telecom rack equipment and fibre-optic infrastructure.
Our founders have been behind some of the most significant advances in quantum key distribution of the past decade. They bring deep and hands-on expertise in quantum cryptography, photonic engineering, and semiconductor technology.
Built quantum communication systems from concept to field deployment, including record-breaking long-distance demonstrations over live telecom networks. PhD in Quantum Communications.
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End-to-end QKD system expertise spanning photonics, electronics, and software, developed across leading industry and research labs. PhD in Information Engineering.
LinkedInWe are expanding our team. Stay tuned.
Whether you're interested in our technology, exploring a partnership, or looking to join the team — we'd love to hear from you.