High-speed and high-performance polarization-based quantum key distribution system without side channel effects caused by multiple lasers

被引：17

作者：

Ko, Heasin ^{[1
]}

Choi, Byung-Seok ^{[1
]}

Choe, Joong-Seon ^{[1
]}

Kim, Kap-Joong ^{[1
]}

Kim, Jong-Hoi ^{[1
]}

Youn, Chun Ju ^{[1
,2
]}

机构：

[1] Elect & Telecommun Res Inst, Photon Wireless Convergence Components Res Div, Daejeon 34129, South Korea

[2] Univ Sci & Technol, Sch Adv Device Technol, Daejeon 34113, South Korea

来源：

PHOTONICS RESEARCH | 2018年 / 6卷 / 03期

关键词：

Quantum cryptography - Array processing - Polarization;

D O I：

10.1364/PRJ.6.000214

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Side channel effects such as temporal disparity and intensity fluctuation of the photon pulses caused by random bit generation with multiple laser diodes in high-speed polarization-based BB84 quantum key distribution (QKD) systems can be eliminated by increasing the DC bias current condition. However, background photons caused by the spontaneous emission process under high DC bias current degrade the performance of QKD systems. In this study, we investigated the effects of spontaneously emitted photons on the system performance in a high-speed QKD system at a clock rate of 400 MHz. Also, we show further improvements in the system performance without side channel effects by utilizing the temporal filtering technique with real-time field-programmable gate array signal processing. (c) 2018 Chinese Laser Press

引用

页码：214 / 219

页数：6

共 21 条

[1]

[Anonymous], 1984, P IEEE INT C COMP, DOI DOI 10.1016/J.TCS.2014.05.025

[2] Limitations on practical quantum cryptography [J].

Brassard, G ;

Lütkenhaus, N ;

Mor, T ;

Sanders, BC .

PHYSICAL REVIEW LETTERS, 2000, 85 (06) :1330-1333

[3]

Coldren L. A., 2012, DIODE LASERS PHOTONI, V2nd

[4] Unambiguous state discrimination in quantum cryptography with weak coherent states -: art. no. 022306 [J].

Dusek, M ;

Jahma, M ;

Lütkenhaus, N .

PHYSICAL REVIEW A, 2000, 62 (02) :9

[5] Security analysis of the decoy method with the Bennett-Brassard 1984 protocol for finite key lengths [J].

Hayashi, Masahito ;

Nakayama, Ryota .

NEW JOURNAL OF PHYSICS, 2014, 16

[6] Quantum key distribution with high loss: Toward global secure communication [J].

Hwang, WY .

PHYSICAL REVIEW LETTERS, 2003, 91 (05) :579011-579014

[7] Critical side channel effects in random bit generation with multiple semiconductor lasers in a polarization-based quantum key distribution system [J].

Ko, Heasin ;

Choi, Byung-Seok ;

Choe, Joong-Seon ;

Kim, Kap-Joong ;

Kim, Jong-Hoi ;

Youn, Chun Ju .

OPTICS EXPRESS, 2017, 25 (17) :20045-20055

[8] Informatic analysis for hidden pulse attack exploiting spectral characteristics of optics in plug-and-play quantum key distribution system [J].

Ko, Heasin ;

Lim, Kyongchun ;

Oh, Junsang ;

Rhee, June-Koo Kevin .

QUANTUM INFORMATION PROCESSING, 2016, 15 (10) :4265-4282

[9] Satellite-to-ground quantum key distribution [J].

Liao, Sheng-Kai ;

Cai, Wen-Qi ;

Liu, Wei-Yue ;

Zhang, Liang ;

Li, Yang ;

Ren, Ji-Gang ;

Yin, Juan ;

Shen, Qi ;

Cao, Yuan ;

Li, Zheng-Ping ;

Li, Feng-Zhi ;

Chen, Xia-Wei ;

Sun, Li-Hua ;

Jia, Jian-Jun ;

Wu, Jin-Cai ;

Jiang, Xiao-Jun ;

Wang, Jian-Feng ;

Huang, Yong-Mei ;

Wang, Qiang ;

Zhou, Yi-Lin ;

Deng, Lei ;

Xi, Tao ;

Ma, Lu ;

Hu, Tai ;

Zhang, Qiang ;

Chen, Yu-Ao ;

Liu, Nai-Le ;

Wang, Xiang-Bin ;

Zhu, Zhen-Cai ;

Lu, Chao-Yang ;

Shu, Rong ;

Peng, Cheng-Zhi ;

Wang, Jian-Yu ;

Pan, Jian-Wei .

NATURE, 2017, 549 (7670) :43-+

[10]

Liao SK, 2017, NAT PHOTONICS, V11, P509, DOI [10.1038/NPHOTON.2017.116, 10.1038/nphoton.2017.116]

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