Klein-berndt, L.
, Souryal, M.
, Miller, L.
and Moayeri, N.
(2005),
Link Variability Studies, WCTG report for OLES
(Accessed July 2, 2025)
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Link Variability Studies
Published
Author(s)
L T. Klein-berndt, , ,
Abstract
We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the bit-stream, generation of random numbers and processing of the sifting algorithm are all handled by a pair of custom data handling circuit boards. As a complete system using a clock rate of 1.25 Gbit/s, it produces sifted keys at a rate of 1.1 Mb/s with an error rate lower than 1.3% while operating at a transmission rate of 312.5 Mbit/s and a mean photon number 5 = 0.1. With a number of proposed improvements this system has a potential for a higher key rate without an elevated error rate.Citation
WCTG report for OLES
Pub Type
Journals
Citation
Issues
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Created September 30, 2005, Updated October 12, 2021