Fibre Wavelength Quantum Relays (FQRelay)

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Quantum communications can secure data transmission, guaranteed by the laws of physics. Technology toachieve this based on encoding information on individual particles of laser light is proven over dedicated point-to-point links. However the full potential will only be realised with multi-user quantum networks, and it isimpossible to copy and resend quantum data, preventing traditional approaches. Quantum relays offer asolution, allowing quantum keys to be teleported across fibre-optic networks. Our vision is to construct andoperate such a quantum relay, for the first time using practical semiconductor technology at the commerciallyoptimum 1550 nm wavelength band. This will be an important step towards widespread adoption ofguaranteed network security solutions for businesses and customers alike.