Achieving high visibility in subcarrier wave quantum key distribution system

International Conference of Young Scientists and Specialists "Optics-2015"

Chistyakov, V.V.^1 ; Smirnov, S.V.^1 ; Nazarov, Yu V.^1 ; Kynev, S.M.^1 ; Gleim, A.V.^1

St.Petersburg National Research University of Information Technologies Mechanics and Optics, Kronverkskiy pr. 49, St.Petersburg

197101, Russia^1

关键词: Interference patterns;    Optical scheme;    Quantum key distribution systems;    Quantum signals;    Subcarrier;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/735/1/012085/pdf
DOI  :  10.1088/1742-6596/735/1/012085

来源: IOP

【 摘 要 】

We study influence of quantum signal polarization distortions in the optical fiber on the interference pattern visibility in a subcarrier wave quantum key distribution system. An optical scheme of the polarization compensation unit is suggested, and dynamics of the QBER depending on the unit architecture is explored.