Quantum‐based technologies will provide system engineers with new capabilities for
securing data communications. The UK AirQKD project has implemented a Free‐Space …

We provide a practical implementation of a free space optical quantum key distribution (FSO-
QKD) system within a vehicle-to-infrastructure (V2I) application developed under the …

There is current significant interest in Fiber‐to‐the‐Home (FTTH) networks, that is, end‐to‐
end optical connectivity. Currently, it may be limited due to the presence of last‐mile copper …

We report on the launch of a link using Quantum Key Distribution (QKD) integrated with
500Gbps encrypted data over 121 km between Adastral Park and Cambridge, UK. This is …

The security of sensitive information exchange has become a major topic in recent years.
Quantum Key Distribution (QKD) provides a highly secure approach to share random …

It is well known that optical access networks are able to provide high data rates over long
distances and to a reasonable number of users. Security and privacy are always a challenge …

Twin-field quantum key distribution (TF-QKD) protocols have remained an enticing solution
because it is able to overcome many of the limitations that are inherently found in QKD …

The limited bandwidth and security provided by radio frequency communications between
the ground and space can be overcome with optical communications. The smaller beam …

Free-space quantum key distribution (QKD), more popularly know as quantum cryptography,
uses single-photon free-space optical communications to distribute the secret keys required …

In this letter, we report on the advances toward the integration of our developed continuous
variables (CV) quantum key distribution (QKD) system in existing optical infrastructure and …