Study on the performance of quantum key distribution scheme with the single photon frequency up-conversion detector

Lei Shi; Jun Wen Luo; Yang Xue; Jiahua Wei

doi:10.1117/12.2283546

24 October 2017 Study on the performance of quantum key distribution scheme with the single photon frequency up-conversion detector

Lei Shi, Jun Wen Luo, Yang Xue, Jiahua Wei

Author Affiliations +

Proceedings Volume 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications; 104640H (2017) https://doi.org/10.1117/12.2283546
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

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.

Citation Download Citation

Lei Shi, Jun Wen Luo, Yang Xue, and Jiahua Wei "Study on the performance of quantum key distribution scheme with the single photon frequency up-conversion detector", Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104640H (24 October 2017); https://doi.org/10.1117/12.2283546

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