Low jitter up-conversion detectors for telecom wavelength GHz QKD

Thew, Rob; Tanzilli, Jean-Sébastien; Krainer, L.; Zeller, S. C.; Rochas, A.; Rech, I.; Cova, S.; Zbinden, Hugo; Gisin, Nicolas

doi:10.1088/1367-2630/8/3/032

Scientific article

English

Low jitter up-conversion detectors for telecom wavelength GHz QKD

Contributors

Thew, Rob

; Tanzilli, Jean-Sébastien; Krainer, L.; Zeller, S. C.; Rochas, A.; Rech, I.; Cova, S.; Zbinden, Hugo

; Gisin, Nicolas

Published in

New journal of physics, vol. 8, no. 3, p. 32-32

Publication date

2006

Abstract

We have developed a hybrid single photon detection scheme for telecom wavelengths based on nonlinear sum-frequency generation and silicon single-photon avalanche diodes (SPADs). The SPAD devices employed have been designed to have very narrow temporal response, i.e. low jitter ∼40 ps, which we can exploit for increasing the allowable bit rate for quantum key distribution. The wavelength conversion is obtained using periodically poled lithium niobate waveguides (W/Gs). The inherently high efficiency of these W/Gs allows us to use a continuous wave laser to seed the nonlinear conversion so as to have a continuous detection scheme. We also present a 1.27 GHz qubit repetition rate, one-way phase encoding, quantum key distribution experiment operating at telecom wavelengths that takes advantage of this detection scheme. The proof-of-principle experiment shows a system capable of MHz raw count rates with a QBER less than 2% and estimated secure key rates greater than 100 kbit s - 1 over 25 km.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Groupe de physique appliquée

Citation (ISO format)

THEW, Rob et al. Low jitter up-conversion detectors for telecom wavelength GHz QKD. In: New journal of physics, 2006, vol. 8, n° 3, p. 32–32. doi: 10.1088/1367-2630/8/3/032

Article (Published version)

Identifiers

PID : unige:36779
DOI : 10.1088/1367-2630/8/3/032

Additional URL for this publication

http://stacks.iop.org/1367-2630/8/i=3/a=032?key=crossref.5615f567ea6867a27b1285c7feb0641b

Journal ISSN

1367-2630

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Creation

19/05/2014 13:01:00

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19/05/2014 13:01:00

Update

14/03/2023 21:14:57

Status update

14/03/2023 21:14:57

Last indexation

30/10/2024 17:18:59

Low jitter up-conversion detectors for telecom wavelength GHz QKD

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

Citation (ISO format)

Main files (1)

Identifiers

Additional URL for this publication

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation