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Proceedings Paper

Changes of quantum state of polarization in coexistence scheme of quantum-classical signal
Author(s): Jun Wen Luo; Yun Xia Li; Lei Shi; Yang Xue
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Paper Abstract

State of polarization(SOP) of single photon is the information carrier of polarization encoding BB84 protocol. SOP of quantum must be interrupted when quantum key distribution(QKD) propagates with classical signal in the same fiber. Coexistence schemes of quantum-classical signal based on two-channel and four-channel have been built respectively on Optisystem in this paper. The influence on SOP of quantum signal in BB84 protocol from different classical optical signal channel has been analyzed and compared by Stokes vector method and Poincare sphere method. SOP of 100 photons in QKD have been simulated. The results show that more channels will increase the bit error rate of QKD, and this paper has described the SOP changes well in coexistence scheme of quantum-classical signal based on wavelength division multiplexing.

Paper Details

Date Published:
PDF: 8 pages
Proc. SPIE 10464, AOPC 2017: Optical Information and Network (Optical Fiber Sensors), 104640G; doi: 10.1117/12.2283541
Show Author Affiliations
Jun Wen Luo, Air Force Engineering Univ. (China)
Yun Xia Li, Air Force Engineering Univ. (China)
Lei Shi, Air Force Engineering Univ. (China)
Yang Xue, Air Force Engineering Univ. (China)


Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Optical Information and Network (Optical Fiber Sensors)

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