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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
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" }