Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Olivier Guinnard"'
Publikováno v:
Journal of Modern Optics. 47:595-598
Publikováno v:
Journal of Modern Optics, Vol. 47, No 4 (2000) pp. 595-598
A physical random number generator based on the intrinsic randomness of quantum mechanics is described. The random events are realized by the choice of single photons between the two outputs of a beamsplitter. We present a simple device, which minimi
Autor:
Jeremy Constantin, Frank K. Gurkaynak, Beat Muheim, Nicolas Gisin, Fabien Vannel, Hugo Zbinden, Yoan Graf, Natalia Kulesza, Matthieu Legre, Etienne Messerli, Patrick Trinkler, Gilles Habegger, Christoph Roth, Daniel Schöni, Luca Henzen, Christopher Portmann, Christoph A. Keller, Olivier Guinnard, Norbert Felber, Gilles Curchod, Raphael Houlmann, Gregory Trolliet, Andreas Burg, Charles Lim Ci Wen, Michael Mühlberghuber, Christian Pendl, Pascal Junod, Dario Caselunghe, Olivier Auberson, Tommaso Lunghi, Nino Walenta, Boris Korzh
Publikováno v:
SPIE Proceedings.
We present the results of a Swiss project dedicated to the development of high speed quantum key distribution and data encryption. The QKD engine features fully automated key exchange, hardware key distillation based on finite key security analysis,
Autor:
Nino Walenta, Tommaso Lunghi, Olivier Guinnard, Hugo Zbinden, Raphael Houlmann, Nicolas Gisin
Publikováno v:
Journal of Applied Physics, Vol. 112, No 6 (2012) P. 063106
We present and analyze a gated single photon avalanche detector using a sine gating scheme with a simple but effective low-pass filtering technique for fast low-noise single photon detection at telecom wavelength. The detector is characterized by 130
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bfc0e240218da0c1ea39e0dbe873909
Autor:
Olivier Guinnard, Xudong Jiang, Hugo Zbinden, Mark A. Itzler, Claudio Barreiro, Raphael Houlmann, Tommaso Lunghi
Publikováno v:
Journal of Modern Optics, Vol. 59, No 17 (2012) pp. 1481-1488
InGaAs/InP-based semiconductor avalanche photodiode are usually employed for single-photon counting at telecom wavelength. However they are affected by afterpulsing which limits the diode performance. Recently, Princeton Lightwave has commercialised
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ce1d69fb23a5652a0109808016d1bac
https://archive-ouverte.unige.ch/unige:25111
https://archive-ouverte.unige.ch/unige:25111
Autor:
Claudio Vinegoni, Nicolas Gisin, M. Wegmuller, P. Oberson, Matthieu Legre, Olivier Guinnard, L. Guinnard
Publikováno v:
IEEE Photonics Technology Letters, Vol. 13, No 2 (2001) pp. 145-147
Exploiting the inherent polarization dependence and good spatial resolution of optical frequency domain reflectometry (OFDR), the beatlength in a ribbon fiber can be straightforwardly measured. The results clearly show the different amount of polariz
Publikováno v:
The 16th Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2003. LEOS 2003..
In this paper the typical performance of the InGaAs/InP APDs used as single-photon counters in the telecom wavelength region and their application in quantum cryptography is described.
Publikováno v:
Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505).
Summary form only given. Recently, we reported on a non-destructive, rapid measuring technique using an optical frequency domain reflectometer (OFDR). The OFDR is ideally suited for this type of measurement, as its range, resolution, and dynamic rang
Autor:
Nicolas Gisin, André Stefanov, Sylvain Fasel, Olivier Guinnard, Grégoire Ribordy, Damien Stucki, Hugo Zbinden
Publikováno v:
SPIE Proceedings.
Quantum key distribution (QKD) is stepping out of the lab. We present a commercial fibre-optic QKD-prototype based on faint laser pulses and the results of field tests. Faint laser, single photon and entangled-photon based systems are compared with r
We present a fibre-optical quantum key distribution system. It works at 1550nm and is based on the plug & play setup. We tested the stability under field conditions using aerial and terrestrial cables and performed a key exchange over 67 km between G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab4fb478cff4a00d7626563966fadc46
http://arxiv.org/abs/quant-ph/0203118
http://arxiv.org/abs/quant-ph/0203118