吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (5): 1612-1616.doi: 10.13229/j.cnki.jdxbgxb201705038

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Influence of fiber channel stress on quantum key distribution bit error rate

WU Jia-nan1, 2, WANG Shi-gang1, WANG Xin-cheng2, WEI Rong-kai2, LIU Gui-xia3   

  1. 1.College of Communication Engineering, Jilin University, Changchun 130022, China;
    2.College of Computer Science and Technology, Changchun University, Changchun 130022, China;
    3.College of Computer Science and Technology, Jilin University, Changchun 130012, China
  • Received:2016-07-24 Online:2017-09-20 Published:2017-09-20

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Abstract: An actual point to point Quantum Key Distribution (QKD) experimental system of polarization encoding was built based on BB84 protocol under stress testing conditions. QKD experiment under commercial fiber channel stress was carried out. The main parameters of the system were collected in real time for data analysis. The results show that, with the increase in the external forces on the fiber channel, both the decoy state error rate and the signal state error rate of the QKD system increase, but the bit generation rate decreases. The tensile limit value of the QKD system is lass than the limit value of the pressure, the system is more sensitive to tension change. Results of this study may provide guidance for the application of key distribution in military and commercial secret communication.

Key words: communication technology, quantum key distribution, BB84 protocol, decoy state, signal state, bit error rate

CLC Number: 

  • TN918
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