Orbital Angular Momentum Multiplexing for Free-space Quantum Key Distribution Impaired by Turbulence

Yu Chen, Shenjie Huang, Majid Safari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

In this paper, a free-space quantum key distribution (QKD) system based on BB84 protocol is studied assuming that the transmitted quantum bits are multiplexed spatially based on orthogonal orbital angular momentum (OAM) carrying beams. The performance of such a system is estimated in terms of quantum bit error rate, outage capacity, and effective data rate taking into account the impact of error correction and privacy amplification. Based on the simulation of OAM-carrying beam propagating through atmospheric channels impaired by turbulence, the crosstalk among the multiplexed channels are investigated and its effect on the performance of the QKD system is evaluated. The presented results provide insight into the efficient design of such multiplexed QKD systems particularly in terms of the choice of the optimal average photon number per pulse and the multiplexing mode set.

Original languageEnglish
Title of host publication2018 14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018
PublisherInstitute of Electrical and Electronics Engineers
Pages636-641
Number of pages6
ISBN (Print)9781538620700
DOIs
Publication statusPublished - 30 Aug 2018
Event14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018 - Limassol, Cyprus
Duration: 25 Jun 201829 Jun 2018

Conference

Conference14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018
Country/TerritoryCyprus
CityLimassol
Period25/06/1829/06/18

Keywords / Materials (for Non-textual outputs)

  • Free Space Optics
  • Orbital Angular Momentum
  • Quantum Key Distribution

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