Multiple spatial modes based QKD over marine free-space optical channels in the presence of atmospheric turbulence | Zendy

Xiaole Sun | Zendy; Ivan B. Djordjević | Zendy; Mark A. Neifeld | Zendy

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Multiple spatial modes based QKD over marine free-space optical channels in the presence of atmospheric turbulence

Author(s) -

Xiaole Sun,

Ivan B. Djordjević,

Mark A. Neifeld

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.027663

Subject(s) - quantum key distribution , free space optical communication , channel (broadcasting) , optics , physics , turbulence , key (lock) , atmospheric turbulence , mode (computer interface) , free space , quantum channel , computer science , optical communication , telecommunications , meteorology , quantum , quantum information , photon , computer security , quantum mechanics , operating system

We investigate a multiple spatial modes based quantum key distribution (QKD) scheme that employs multiple independent parallel beams through a marine free-space optical channel over open ocean. This approach provides the potential to increase secret key rate (SKR) linearly with the number of channels. To improve the SKR performance, we describe a back-propagation mode (BPM) method to mitigate the atmospheric turbulence effects. Our simulation results indicate that the secret key rate can be improved significantly by employing the proposed BPM-based multi-channel QKD scheme.

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