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

被引:2
作者
Klicnik, Ondrej [1 ]
Munster, Petr [1 ]
Horvath, Tomas [1 ]
机构
[1] Brno Univ Technol, Fac Elect Engn & Commun, Dept Telecommun, Brno 60200, Czech Republic
关键词
attenuation; Clavis(3); coherent one-way protocol; quantum key distribution; wavelength-division multiplexing;
D O I
10.3390/photonics10111265
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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.
引用
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页数:14
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共 30 条
[11]   Coexistence of continuous variable QKD with intense DWDM classical channels [J].
Kumar, Rupesh ;
Qin, Hao ;
Alleaume, Romain .
NEW JOURNAL OF PHYSICS, 2015, 17
[12]  
Lovic V., 2020, Camb. J. Sci. Policy, V1, DOI [10.17863/CAM.58622, DOI 10.17863/CAM.58622]
[13]  
LUXQUANTA, About us
[14]  
Markus W., 2012, Experimental Quantum Memory Applications and Demonstration of an Elementary Quantum Repeater Link with Entangled Light-Matter Interfaces, V102
[15]  
Mlejnek M, 2017, Arxiv, DOI arXiv:1712.05891
[16]   A photonic integrated quantum secure communication system [J].
Paraiso, Taofiq K. ;
Roger, Thomas ;
Marangon, Davide G. ;
De Marco, Innocenzo ;
Sanzaro, Mirko ;
Woodward, Robert, I ;
Dynes, James F. ;
Yuan, Zhiliang ;
Shields, Andrew J. .
NATURE PHOTONICS, 2021, 15 (11) :850-856
[17]   2xN twin-field quantum key distribution network configuration based on polarization, wavelength, and time division multiplexing [J].
Park, Chang Hoon ;
Woo, Min Ki ;
Park, Byung Kwon ;
Kim, Yong-Su ;
Baek, Hyeonjun ;
Lee, Seung-Woo ;
Lim, Hyang-Tag ;
Jeon, Seung-Woo ;
Jung, Hojoong ;
Kim, Sangin ;
Han, Sang-Wook .
NPJ QUANTUM INFORMATION, 2022, 8 (01)
[18]   Dense wavelength multiplexing of 1550nm QKD with strong classical channels in reconfigurable networking environments [J].
Peters, N. A. ;
Toliver, P. ;
Chapuran, T. E. ;
Runser, R. J. ;
McNown, S. R. ;
Peterson, C. G. ;
Rosenberg, D. ;
Dallmann, N. ;
Hughes, R. J. ;
McCabe, K. P. ;
Nordholt, J. E. ;
Tyagi, K. T. .
NEW JOURNAL OF PHYSICS, 2009, 11
[19]   Feasibility of quantum key distribution through a dense wavelength division multiplexing network [J].
Qi, Bing ;
Zhu, Wen ;
Qian, Li ;
Lo, Hoi-Kwong .
NEW JOURNAL OF PHYSICS, 2010, 12
[20]  
Qiao Ruihong, 2019, Journal of Physics: Conference Series, V1237, DOI 10.1088/1742-6596/1237/5/052032