scholarly journals Modeling optical fiber space division multiplexed quantum key distribution systems

2019 ◽  
Vol 27 (5) ◽  
pp. 7047 ◽  
Author(s):  
Mario Ureña ◽  
Ivana Gasulla ◽  
Francisco Javier Fraile ◽  
Jose Capmany
Keyword(s):  
Optical Fiber ◽  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution ◽  
Fiber Space ◽  
Space Division

Several Kinds of Polarization Compensation Techniques of Optical Fiber Quantum Key Distribution Systems

2014 ◽  
Vol 51 (9) ◽  
pp. 090603
Author(s):  
王剑 Wang Jian ◽  
朱勇 Zhu Yong ◽  
周华 Zhou Hua ◽  
苏洋 Su Yang ◽  
朱波 Zhu Bo
Keyword(s):  
Optical Fiber ◽  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution

scholarly journals Modeling and Simulation for Performance Evaluation of Optical Quantum Channels in Quantum key Distribution Systems

2021 ◽  
Vol 17 (2) ◽  
pp. 31-44
Author(s):  
Adil Fadhil Mushatet ◽  
Shelan Khasro Tawfeeq
Keyword(s):  
Performance Evaluation ◽  
Optical Fiber ◽  
Free Space ◽  
Quantum Channel ◽  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution ◽  
Quantum Channels ◽  
Quantum Bit ◽  
Modeling Process

In this research work, a simulator with time-domain visualizers and configurable parameters using a continuous time simulation approach with Matlab R2019a is presented for modeling and investigating the performance of optical fiber and free-space quantum channels as a part of a generic quantum key distribution system simulator. The modeled optical fiber quantum channel is characterized with a maximum allowable distance of 150 km with 0.2 dB/km at =1550nm. While, at =900nm and =830nm the attenuation values are 2 dB/km and 3 dB/km respectively. The modeled free space quantum channel is characterized at 0.1 dB/km at =860 nm with maximum allowable distance of 150 km also. The simulator was investigated in terms of the execution of the BB84 protocol based on polarizing encoding with consideration of the optical fiber and free-space quantum channel imperfections and losses by estimating the quantum bit error rate and final secure key. This work shows a general repeatable modeling process for significant performance evaluation. The most remarkable result that emerged from the simulated data generated and detected is that the modeling process provides guidance for optical quantum channels design and characterization for other quantum key distribution protocols.

scholarly journals Synchronization in Quantum Key Distribution Systems

Cryptography ◽  
2017 ◽  
Vol 1 (3) ◽  
pp. 18 ◽  
Author(s):  
Anton Pljonkin ◽  
Konstantin Rumyantsev ◽  
Pradeep Singh
Keyword(s):  
Quantum Key Distribution ◽  
Distribution Systems ◽  
Key Distribution

scholarly journals Secure Quantum Key Distribution over 421 km of Optical Fiber

2018 ◽  
Vol 121 (19) ◽  
Author(s):  
Alberto Boaron ◽  
Gianluca Boso ◽  
Davide Rusca ◽  
Cédric Vulliez ◽  
Claire Autebert ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Quantum Key Distribution ◽  
Key Distribution

Dual-Threshold Balanced Homodyne Detection at 1550 nm Optical Fiber Quantum Key Distribution System

2009 ◽  
Vol 27 (15) ◽  
pp. 3202-3211 ◽  
Author(s):  
Q. Xu ◽  
M. Sabban ◽  
M.B. Costa e Silva ◽  
P. Gallion ◽  
F.J. Mendieta
Keyword(s):  
Optical Fiber ◽  
Distribution System ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Homodyne Detection

Modeling of Quantum Key Distribution System for Secure Information Transfer

2014 ◽  
pp. 811-840
Author(s):  
K. E. Rumyantsev ◽  
D. M. Golubchikov
Keyword(s):  
Distribution System ◽  
Quantum Key Distribution ◽  
Information Transfer ◽  
Distribution Systems ◽  
Key Distribution ◽  
Photon State ◽  
Secure Information ◽  
Sequence Production ◽  
Security Infrastructure ◽  
Processing Algorithms

This chapter is an analysis of commercial quantum key distribution systems. Upon analysis, the generalized structure of QKDS with phase coding of a photon state is presented. The structure includes modules that immediately participate in the task of distribution and processing of quantum states. Phases of key sequence productions are studied. Expressions that allow the estimation of physical characteristics of optoelectronic components, as well as information processing algorithms impact to rate of key sequence production, are formed. Information security infrastructure can be utilized, for instance, to formulate requirements to maximize tolerable error level in quantum channel with a given rate of key sequence production.

scholarly journals The Influence of Signal Polarization on Quantum Bit Error Rate for Subcarrier Wave Quantum Key Distribution Protocol

Entropy ◽  
2020 ◽  
Vol 22 (12) ◽  
pp. 1393
Author(s):  
Andrei Gaidash ◽  
Anton Kozubov ◽  
Svetlana Medvedeva ◽  
George Miroshnichenko
Keyword(s):  
Optical Fiber ◽  
Bit Error Rate ◽  
Error Rate ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Stokes Parameters ◽  
Second Phase ◽  
Quantum Bit ◽  
Quantum Bit Error Rate ◽  
Quantum Key Distribution Protocol

In this paper, we consider the influence of a divergence of polarization of a quantum signal transmitted through an optical fiber channel on the quantum bit error rate of the subcarrier wave quantum key distribution protocol. Firstly, we investigate the dependence of the optical power of the signal on the modulation indices’ difference after the second phase modulation of the signal. Then we consider the Liouville equation with regard to relaxation in order to develop expressions of the dynamics of the Stokes parameters. As a result, we propose a model that describes quantum bit error rate for the subcarrier wave quantum key distribution depending on the characteristics of the optical fiber. Finally, we propose several methods for minimizing quantum bit error rate.

Sign in / Sign up

Export Citation Format

Share Document