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Proceedings Paper

Study on the performance of quantum key distribution scheme with the single photon frequency up-conversion detector
Author(s): Lei Shi; Jun Wen Luo; Yang Xue; Jiahua Wei
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Paper Abstract

In order to improve the detection efficiency in QKD system, this paper has put forward a new quantum key distribution scheme based on the single photon frequency up-conversion detection technology and decoy-state BB84 protocol. A long wavelength pump light is adopted in single photon detector (SPD) to avoid the noise caused by spontaneous parametric down conversion (SPDC), thus an overall 28% detection efficiency is achieved which is five times of 4.5% in conventional InGaAs-based detectors. Moreover, the propagating distances has reached 90km and 150km with weak coherent pulse (WCP) and decoy weak coherent pulse (DWCP) respectively, which is 1.3 times and 1.05 times of the conventional InGaAs-based detectors of 70km and 140km.

Paper Details

Date Published: 24 October 2017
PDF: 10 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104640H (24 October 2017); doi: 10.1117/12.2283546
Show Author Affiliations
Lei Shi, Air Force Engineering Univ. (China)
Jun Wen Luo, Air Force Engineering Univ. (China)
Yang Xue, Air Force Engineering Univ. (China)
Jiahua Wei, Air Force Engineering Univ. (China)

Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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