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DTR-MESA-SYS0070012: System Reference Architecture

Published

Author(s)

L T. Klein-berdnt

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.
Proceedings Title
Project MESA Meeting
Conference Dates
April 27-30, 2005
Conference Location
Denver, CO, USA

Citation

Klein-berdnt, L. (2005), DTR-MESA-SYS0070012: System Reference Architecture, Project MESA Meeting, Denver, CO, USA (Accessed May 26, 2024)

Issues

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Created September 30, 2005, Updated October 12, 2021