### Abstract

A demonstration of the principles of quantum key distribution (QKD) is performed using a single-photon source in a proof of concept test-bed over a distance of 2 km in standard telecommunications optical fiber. The single-photon source was an optically-pumped quantum dot in a microcavity emitting at a wavelength of 895 nm. Characterization of the QKD parameters was performed at a range of different optical excitation powers. An investigation of the effect of varying the optical excitation power of the quantum dot microcavity on the quantum bit error rate and cryptographic key exchange rate of the system are presented. © 2010 American Institute of Physics.

Original language | English |
---|---|

Article number | 073102 |

Journal | Journal of Applied Physics |

Volume | 107 |

Issue number | 7 |

DOIs | |

Publication status | Published - 1 Apr 2010 |

### Fingerprint

### Cite this

*Journal of Applied Physics*,

*107*(7), [073102]. https://doi.org/10.1063/1.3327427

}

*Journal of Applied Physics*, vol. 107, no. 7, 073102. https://doi.org/10.1063/1.3327427

**Quantum key distribution system in standard telecommunications fiber using a short wavelength single photon source.** / Collins, R. J.; Clarke, P. J.; Fernández, V.; Gordon, K. J.; Makhonin, M. N.; Timpson, J. A.; Tahraoui, A.; Hopkinson, M.; Fox, A. M.; Skolnick, M. S.; Buller, G. S.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Quantum key distribution system in standard telecommunications fiber using a short wavelength single photon source

AU - Collins, R. J.

AU - Clarke, P. J.

AU - Fernández, V.

AU - Gordon, K. J.

AU - Makhonin, M. N.

AU - Timpson, J. A.

AU - Tahraoui, A.

AU - Hopkinson, M.

AU - Fox, A. M.

AU - Skolnick, M. S.

AU - Buller, G. S.

PY - 2010/4/1

Y1 - 2010/4/1

N2 - A demonstration of the principles of quantum key distribution (QKD) is performed using a single-photon source in a proof of concept test-bed over a distance of 2 km in standard telecommunications optical fiber. The single-photon source was an optically-pumped quantum dot in a microcavity emitting at a wavelength of 895 nm. Characterization of the QKD parameters was performed at a range of different optical excitation powers. An investigation of the effect of varying the optical excitation power of the quantum dot microcavity on the quantum bit error rate and cryptographic key exchange rate of the system are presented. © 2010 American Institute of Physics.

AB - A demonstration of the principles of quantum key distribution (QKD) is performed using a single-photon source in a proof of concept test-bed over a distance of 2 km in standard telecommunications optical fiber. The single-photon source was an optically-pumped quantum dot in a microcavity emitting at a wavelength of 895 nm. Characterization of the QKD parameters was performed at a range of different optical excitation powers. An investigation of the effect of varying the optical excitation power of the quantum dot microcavity on the quantum bit error rate and cryptographic key exchange rate of the system are presented. © 2010 American Institute of Physics.

U2 - 10.1063/1.3327427

DO - 10.1063/1.3327427

M3 - Article

VL - 107

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 7

M1 - 073102

ER -