On the optimization of underwater quantum key distribution systems with time-gated SPADs

Amir Hossein Fahim Raouf, Murat Uysal

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we study the effect of various transmitter and receiver parameters on the quantum bit error rate (QBER) performance of underwater quantum key distribution. We utilize a Monte Carlo approach to simulate the trajectories of emitted photons transmitting in water from the transmitter towards the receiver. Based on propagation delay results, we first determine a proper value for the bit period to avoid intersymbol interference as a result of possible multiple scattering events. Then, based on the angle of arrival of the received photons, we determine a proper field of view to limit the average number of received background noise. Finally, we determine the optimal value for the single photon avalanche diode gate time in the sense of minimizing the QBER for the selected system parameters and given propagation environment.

Original languageEnglish (US)
Pages (from-to)2013-2019
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Volume39
Issue number8
DOIs
StatePublished - Aug 2022

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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