NIST researchers have developed a novel quantum-based self-calibrating standard for testing components in next-gen telecommunications networks. The system, based on single flux quantum (SFQ) technology, could provide reference signals for networks operating at frequencies up to 100 GHz and beyond.
The new reference waveform source design, intended for deployment on a single chip, utilizes synchronized microscopic superconducting devices called Josephson junctions cooled to 4 kelvin. The system generates accurate voltage signals through quantum effects, which can be used to calibrate and maintain the integrity of high-speed telecommunications networks.
The technology could enable signal quality improvements in all components of the 5G communications chain, including transmitters, amplifiers, and receivers. NIST researchers are currently working on demonstrating higher frequencies and output signal levels, which are challenging but necessary for widespread deployment.
Source: https://www.nist.gov/news-events/news/2021/02/calibrating-next-gen-telecom-5g-and-beyond
Keywords: Quantum, Standard, Signal, Frequency, Amplifier
