Long-distance entanglement-based quantum key distribution over optical fiber

T. Honjo; S. W. Nam; H. Takesue; Q. Zhang; H. Kamada; Y. Nishida; O. Tadanaga; M. Asobe; B. Baek; R. Hadfield; S. Miki; M. Fujiwara; M. Sasaki; Z. Wang; K. Inoue; Y. Yamamoto

doi:10.1364/OE.16.019118

Long-distance entanglement-based quantum key distribution over optical fiber

T. Honjo, S. W. Nam, H. Takesue, Q. Zhang, H. Kamada, Y. Nishida, O. Tadanaga, M. Asobe, B. Baek, R. Hadfield, S. Miki, M. Fujiwara, M. Sasaki, Z. Wang, K. Inoue, Y. Yamamoto

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

90 Citations (Scopus)

Abstract

We report the first entanglement-based quantum key distribution (QKD) experiment over a 100-km optical fiber. We used superconducting single photon detectors based on NbN nanowires that provide high-speed single photon detection for the 1.5-mu m telecom band, an efficient entangled photon pair source that consists of a fiber coupled periodically poled lithium niobate waveguide and ultra low loss filters, and planar lightwave circuit Mach-Zehnder interferometers (MZIs) with ultra stable operation. These characteristics enabled us to perform an entanglement-based QKD experiment over a 100-km optical fiber. In the experiment, which lasted approximately 8 hours, we successfully generated a 16 kbit sifted key with a quantum bit error rate of 6.9% at a rate of 0.59 bits per second, from which we were able to distill a 3.9 kbit secure key. (C) 2008 Optical Society of America

Original language	English
Pages (from-to)	19118-19126
Number of pages	9
Journal	Optics Express
Volume	16
Issue number	23
DOIs	https://doi.org/10.1364/OE.16.019118
Publication status	Published - 10 Nov 2008

Access to Document

10.1364/OE.16.019118

Cite this

@article{8fa12cc809c14026873d2cb533c1aa36,

title = "Long-distance entanglement-based quantum key distribution over optical fiber",

abstract = "We report the first entanglement-based quantum key distribution (QKD) experiment over a 100-km optical fiber. We used superconducting single photon detectors based on NbN nanowires that provide high-speed single photon detection for the 1.5-mu m telecom band, an efficient entangled photon pair source that consists of a fiber coupled periodically poled lithium niobate waveguide and ultra low loss filters, and planar lightwave circuit Mach-Zehnder interferometers (MZIs) with ultra stable operation. These characteristics enabled us to perform an entanglement-based QKD experiment over a 100-km optical fiber. In the experiment, which lasted approximately 8 hours, we successfully generated a 16 kbit sifted key with a quantum bit error rate of 6.9% at a rate of 0.59 bits per second, from which we were able to distill a 3.9 kbit secure key. (C) 2008 Optical Society of America",

author = "T. Honjo and Nam, {S. W.} and H. Takesue and Q. Zhang and H. Kamada and Y. Nishida and O. Tadanaga and M. Asobe and B. Baek and R. Hadfield and S. Miki and M. Fujiwara and M. Sasaki and Z. Wang and K. Inoue and Y. Yamamoto",

year = "2008",

month = nov,

day = "10",

doi = "10.1364/OE.16.019118",

language = "English",

volume = "16",

pages = "19118--19126",

journal = "Optics Express",

issn = "1094-4087",

publisher = "OSA Publishing",

number = "23",

}

TY - JOUR

T1 - Long-distance entanglement-based quantum key distribution over optical fiber

AU - Honjo, T.

AU - Nam, S. W.

AU - Takesue, H.

AU - Zhang, Q.

AU - Kamada, H.

AU - Nishida, Y.

AU - Tadanaga, O.

AU - Asobe, M.

AU - Baek, B.

AU - Hadfield, R.

AU - Miki, S.

AU - Fujiwara, M.

AU - Sasaki, M.

AU - Wang, Z.

AU - Inoue, K.

AU - Yamamoto, Y.

PY - 2008/11/10

Y1 - 2008/11/10

N2 - We report the first entanglement-based quantum key distribution (QKD) experiment over a 100-km optical fiber. We used superconducting single photon detectors based on NbN nanowires that provide high-speed single photon detection for the 1.5-mu m telecom band, an efficient entangled photon pair source that consists of a fiber coupled periodically poled lithium niobate waveguide and ultra low loss filters, and planar lightwave circuit Mach-Zehnder interferometers (MZIs) with ultra stable operation. These characteristics enabled us to perform an entanglement-based QKD experiment over a 100-km optical fiber. In the experiment, which lasted approximately 8 hours, we successfully generated a 16 kbit sifted key with a quantum bit error rate of 6.9% at a rate of 0.59 bits per second, from which we were able to distill a 3.9 kbit secure key. (C) 2008 Optical Society of America

AB - We report the first entanglement-based quantum key distribution (QKD) experiment over a 100-km optical fiber. We used superconducting single photon detectors based on NbN nanowires that provide high-speed single photon detection for the 1.5-mu m telecom band, an efficient entangled photon pair source that consists of a fiber coupled periodically poled lithium niobate waveguide and ultra low loss filters, and planar lightwave circuit Mach-Zehnder interferometers (MZIs) with ultra stable operation. These characteristics enabled us to perform an entanglement-based QKD experiment over a 100-km optical fiber. In the experiment, which lasted approximately 8 hours, we successfully generated a 16 kbit sifted key with a quantum bit error rate of 6.9% at a rate of 0.59 bits per second, from which we were able to distill a 3.9 kbit secure key. (C) 2008 Optical Society of America

U2 - 10.1364/OE.16.019118

DO - 10.1364/OE.16.019118

M3 - Article

SN - 1094-4087

VL - 16

SP - 19118

EP - 19126

JO - Optics Express

JF - Optics Express

IS - 23

ER -

Long-distance entanglement-based quantum key distribution over optical fiber

Abstract

Access to Document

Fingerprint

Cite this