Crosstalk Reduction in Hybrid Quantum-Classical Networks

Authors

1 Electrical Engineering Department, Sharif University of Technology, Tehran, Iran

2 School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, UK

Abstract

In this paper, we propose and investigate several crosstalk reduction techniques for hybrid quantum-classical densewavelength- division-multiplexing systems. The transmission of intense  classical signals alongside weak quantum ones on the same fiber introduces some crosstalk noise, mainly due to Raman scattering and nonideal channel isolation, that may severely a ect the performance of quantum key distribution systems. We examine the conventional methods of suppressing this crosstalk noise, and enhance them by proposing an appropriate channel allocation method that reduces the background crosstalk e ectively. Another approach proposed in this paper is the usage of orthogonal frequency division multiplexing, which o ers ecient spectral and temporal filtering features.

Keywords


Volume 23, Issue 6 - Serial Number 6
Transactions on Computer Science & Engineering and Electrical Engineering (D)
December 2016
Pages 2898-2907
  • Receive Date: 21 August 2016
  • Revise Date: 21 December 2024
  • Accept Date: 27 July 2017