Practical high-speed light source for decoy-state quantum key distribution

Haibin Du; Yan Liang; Shengxiang Zhang; Xiuliang Chen; Lin Zhao; Jie Chen; Heping Zeng

doi:10.3788/COL201412.072702

Practical high-speed light source for decoy-state quantum key distribution

Haibin Du, Yan Liang, Shengxiang Zhang, Xiuliang Chen, Lin Zhao, Jie Chen, Heping Zeng

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

High-speed light source is realized for decoy-state quantum key distribution (QKD) at telecom wavelength of 1.55 μm. By implementing two different electrical pulses together and triggering with 100 MHz pseudorandom number to drive the laser diode, the signal-state and the decoy-state pulses are prepared with identical pulse duration of 25 ps and similar spectral characteristics, avoiding the eavesdropper's attack by temporal and spectral analysis. The intensity fluctuation of the light source is quantified to satisfy the practical decoy-state QKD with random intensity error. The characteristics of the light source are analyzed with a high-speed single-photon detector.

Original language	English
Article number	072702
Journal	Chinese Optics Letters
Volume	12
Issue number	7
DOIs	https://doi.org/10.3788/COL201412.072702
State	Published - Jul 2014

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title = "Practical high-speed light source for decoy-state quantum key distribution",

abstract = "High-speed light source is realized for decoy-state quantum key distribution (QKD) at telecom wavelength of 1.55 μm. By implementing two different electrical pulses together and triggering with 100 MHz pseudorandom number to drive the laser diode, the signal-state and the decoy-state pulses are prepared with identical pulse duration of 25 ps and similar spectral characteristics, avoiding the eavesdropper's attack by temporal and spectral analysis. The intensity fluctuation of the light source is quantified to satisfy the practical decoy-state QKD with random intensity error. The characteristics of the light source are analyzed with a high-speed single-photon detector.",

author = "Haibin Du and Yan Liang and Shengxiang Zhang and Xiuliang Chen and Lin Zhao and Jie Chen and Heping Zeng",

year = "2014",

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T1 - Practical high-speed light source for decoy-state quantum key distribution

AU - Du, Haibin

AU - Liang, Yan

AU - Zhang, Shengxiang

AU - Chen, Xiuliang

AU - Zhao, Lin

AU - Chen, Jie

AU - Zeng, Heping

PY - 2014/7

Y1 - 2014/7

N2 - High-speed light source is realized for decoy-state quantum key distribution (QKD) at telecom wavelength of 1.55 μm. By implementing two different electrical pulses together and triggering with 100 MHz pseudorandom number to drive the laser diode, the signal-state and the decoy-state pulses are prepared with identical pulse duration of 25 ps and similar spectral characteristics, avoiding the eavesdropper's attack by temporal and spectral analysis. The intensity fluctuation of the light source is quantified to satisfy the practical decoy-state QKD with random intensity error. The characteristics of the light source are analyzed with a high-speed single-photon detector.

AB - High-speed light source is realized for decoy-state quantum key distribution (QKD) at telecom wavelength of 1.55 μm. By implementing two different electrical pulses together and triggering with 100 MHz pseudorandom number to drive the laser diode, the signal-state and the decoy-state pulses are prepared with identical pulse duration of 25 ps and similar spectral characteristics, avoiding the eavesdropper's attack by temporal and spectral analysis. The intensity fluctuation of the light source is quantified to satisfy the practical decoy-state QKD with random intensity error. The characteristics of the light source are analyzed with a high-speed single-photon detector.

UR - https://www.scopus.com/pages/publications/84904893661

U2 - 10.3788/COL201412.072702

DO - 10.3788/COL201412.072702

M3 - 文章

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SN - 1671-7694

VL - 12

JO - Chinese Optics Letters

JF - Chinese Optics Letters

IS - 7

M1 - 072702

ER -

Practical high-speed light source for decoy-state quantum key distribution

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