Detail publikace

Multiplexing Quantum and Classical Channels of a Quantum Key Distribution (QKD) System by Using the Attenuation Method

KLÍČNÍK, O. MÜNSTER, P. HORVÁTH, T.

Originální název

Multiplexing Quantum and Classical Channels of a Quantum Key Distribution (QKD) System by Using the Attenuation Method

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The primary goal in this paper is to verify the possibility of combining a quantum channel into a single optical fiber with other classical channels by using the so-called attenuation method. Since the quantum channel is very weak in terms of power, combining it into a single fiber with much more powerful classical channels is challenging. Thus, sufficiently high-quality filtering is important to avoid possible crosstalk. A second and more difficult problem to address is the interference caused by Raman noise, which increases with the fiber length and is also dependent on the input power of the classical channel. Thus, in this paper the focus is on the possibility of suppressing the Raman noise effect, both in advance by means of wavelength positioning and by means of installed optical components. Such phenomena must be considered in the route design, as the quantum channel must be placed at a suitable wavelength with respect to the classical channels. The influence of other nonlinear phenomena has been neglected. In this paper, a practical experiment aimed at building a fully functional multiplexed quantum key distribution link is also described.

Klíčová slova

attenuation; Clavis3; coherent one-way protocol; quantum key distribution; wavelength-division multiplexing

Autoři

KLÍČNÍK, O.; MÜNSTER, P.; HORVÁTH, T.

Vydáno

16. 11. 2023

Nakladatel

MDPI

Místo

BASEL, SWITZERLAND

ISSN

2304-6732

Periodikum

Photonics

Ročník

10

Číslo

11

Stát

Švýcarská konfederace

Strany od

1

Strany do

14

Strany počet

14

URL

https://www.mdpi.com/2304-6732/10/11/1265

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245124

BibTex

@article{BUT185324,
  author="Ondřej {Klíčník} and Petr {Münster} and Tomáš {Horváth}",
  title="Multiplexing Quantum and Classical Channels of a Quantum Key Distribution (QKD) System by Using the Attenuation Method",
  journal="Photonics",
  year="2023",
  volume="10",
  number="11",
  pages="1--14",
  doi="10.3390/photonics10111265",
  issn="2304-6732",
  url="https://www.mdpi.com/2304-6732/10/11/1265"
}