BT is testing a new hyper-sensitive quantum antenna technology uses ‘excited atoms’ to deliver over 100x greater sensitivity than traditional receivers.
BT says Atomic Radio Frequency (RF) receiver technology represents a revolutionary new way of detecting radio waves that could find much weaker signals than conventional receivers. The receiver works by using a quantum effect called “electromagnetically induced transparency” to form a highly sensitive electric field detector. BT’s trial represents the first time a digitally-encoded message has been received on a 3.6GHz (5G) carrier frequency. Previously, simple audio has been received using much higher frequencies but this trial is the first industrial demonstration using digital modulation within one of EE’s main commercial 5G frequency ranges.
Researchers at BT Labs in Martlesham are now working to miniaturise the equipment and find the optimum RF modulation and signal processing for potential use in future generations of radio networks. BT has secured a number of patents related to the implementation of the atomic RF receiver and is the first company to make use of the technology to send a message at 3.6GHz. Earlier this year, BT also had its first external publication on its atomic RF Receivers accepted for publication in the prestigious Journal of Lightwave Technology.
Howard Watson, Chief Technology Officer of BT said: “BT’s investment in cutting edge R&D plays a central role in ensuring the UK remains a network technology leader. Our programme has huge potential to boost the performance of our next generation EE network and deliver an even better service to our customers. Although it’s early days for the technology, we’re proud to be playing an instrumental role in developing cutting edge science”.
BT tests Quantum Key Distribution over hollow core fibre
BT has conducted a trial of Quantum Key Distribution (QKD) over hollow core fibre cable developed by Lumenisity, a spin out from Southampton University.Testing of Nested Anti-Resonant Nodeless Fibre (NANF) hollow core fibre kicked off this summer at the BT Labs in Ipswich.BT researchers operated a state-of-the-art QKD system using commercial equipment over a 6-kilometre-long Lumenisity CoreSmart cable with a hollow, air-filled centre, revealing…
