Low timing jitter detector for gigahertz quantum key distribution
Robert J. Collins, Robert Hadfield, Veronica Fernandez, Sae Woo Nam, Gerald S. Buller
A superconducting single-photon detector based on a niobium nitride nanowire is demonstrated in an optical-fibre-based quantum key distribution test bed operating at a clock rate of 3.3 GHz and a transmission wavelength of 850 nm. The low jitter of the detector leads to significant reduction in estimated quantum bit error rate and a resultant improvement in secrecy efficiency compared to previous estimates made by use of silicon single-photon avalanche detectors.
, Hadfield, R.
, Fernandez, V.
, Nam, S.
and Buller, G.
Low timing jitter detector for gigahertz quantum key distribution, Electronics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32559
(Accessed November 29, 2023)