Klein-berndt, L.
, Souryal, M.
, Miller, L.
and Moayeri, N.
(2005),
Link Variability Studies, WCTG report for OLES
(Accessed June 15, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
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
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created September 30, 2005, Updated October 12, 2021