Analysis of the chromatic dispersion effect on the subcarrier wave QKD system

In this paper we investigate the chromatic dispersion impact on the quantum key distribution system based on multi-mode weak coherent phase-coded states. We provide an asymptotic secure key rate estimation, taking into account error detection probability due to chromatic dispersion. We demonstrate n...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2020-09, Vol.28 (19), p.28696-28712
Main Authors: Kiselev, F., Samsonov, E., Goncharov, R., Chistyakov, V., Halturinsky, A., Egorov, V., Kozubov, A., Gaidash, A., Gleim, A.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper we investigate the chromatic dispersion impact on the quantum key distribution system based on multi-mode weak coherent phase-coded states. We provide an asymptotic secure key rate estimation, taking into account error detection probability due to chromatic dispersion. We demonstrate numerically and experimentally that the effect of chromatic dispersion in an optical fiber without any compensation hinders the secret key distribution at a distance more than 53 km. Finally, we propose a modification to the considered quantum communication system in order to mitigate the influence of chromatic dispersion on its performance.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.403293