Records |
Author |
Hadfield, Robert. H.; Habif, Jonathan L.; Schlafer, John; Schwall, Robert. E.; Nam, Sae Woo |
Title |
Quantum key distribution at 1550 nm with twin superconducting single-photon detectors |
Type |
Journal Article |
Year |
2006 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
89 |
Issue |
24 |
Pages |
241129 |
Keywords |
SSPD, quantum cryptography |
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ISSN |
0003-6951 |
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Serial |
533 |
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Author |
Verevkin, A.; Slysz, W.; Pearlman, A.; Zhang, J.; Sobolewski, R.; Okunev, O.; Korneev, A.; Kouminov, P.; Smirnov, K.; Chulkova, G.; Gol’tsman, G. N.; Currie, M. |
Title |
Real-time GHz-rate counting of infrared photons using nanostructured NbN superconducting detectors |
Type |
Conference Article |
Year |
2003 |
Publication |
CLEO/QELS |
Abbreviated Journal |
CLEO/QELS |
Volume |
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Issue |
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Pages |
CThM8 |
Keywords |
NbN SSPD; SNSPD; Infrared; Quantum detectors; Detectors; Photon counting; Quantum communications; Quantum cryptography; Single photon detectors; Superconductors |
Abstract |
We demonstrate that our ultrathin, nanometer-width NbN superconducting single-photon detectors are capable of above 1-GHz-frequency, real-time counting of near-infrared photons. The measured system jitter of the detector is below 15 ps. |
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Optical Society of America |
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Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference |
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1517 |
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Author |
Stucki, Damien; Barreiro, Claudio; Fasel, Sylvain; Gautier, Jean-Daniel; Gay, Olivier; Gisin, Nicolas; Thew, Rob; Thoma, Yann; Trinkler, Patrick; Vannel, Fabien; Zbinden, Hugo |
Title |
Continuous high speed coherent one-way quantum key distribution |
Type |
Journal Article |
Year |
2009 |
Publication |
Optics Express |
Abbreviated Journal |
Opt. Express |
Volume |
17 |
Issue |
16 |
Pages |
13326-13334 |
Keywords |
quantum cryptography, QKD, PNS, SSPD, coherent one way, COW |
Abstract |
Quantum key distribution (QKD) is the first commercial quantum technology operating at the level of single quanta and is a leading light for quantum-enabled photonic technologies. However, controlling these quantum optical systems in real world environments presents significant challenges. For the first time, we have brought together three key concepts for future QKD systems: a simple high-speed protocol; high performance detection; and integration both, at the component level and for standard fibre network connectivity. The QKD system is capable of continuous and autonomous operation, generating secret keys in real time. Laboratory and field tests were performed and comparisons made with robust InGaAs avalanche photodiodes and superconducting detectors. We report the first real world implementation of a fully functional QKD system over a 43dB-loss (150km) transmission line in the Swisscom fibre optic network where we obtained average real-time distribution rates over 3 hours of 2.5bps. |
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RPLAB @ akorneev @ |
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602 |
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Author |
Takesue, Hiroki; Nam, Sae Woo; Zhang, Qiang; Hadfield, Robert H.; Honjo, Toshimori; Tamaki, Kiyoshi; Yamamoto, Yoshihisa |
Title |
Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors |
Type |
Journal Article |
Year |
2007 |
Publication |
Nature Photonics |
Abbreviated Journal |
Nat. Photon. |
Volume |
1 |
Issue |
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Pages |
343-348 |
Keywords |
quantum cryptography, SSPD, QKD, DSP |
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RPLAB @ akorneev @ |
Serial |
609 |
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Author |
Stucki, D.; Walenta, N.; Vannel, F.; Thew, R.T.; Gisin, N.; Zbinden, H.; Gray, S.; Towery, C. R.; Ten, S. |
Title |
High rate long-distance quantum key distribution over 250 km of ultra low loss fibres |
Type |
Journal Article |
Year |
2009 |
Publication |
New J. Phys. |
Abbreviated Journal |
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Volume |
11 |
Issue |
7 |
Pages |
075003 |
Keywords |
SSPD, quantum cryptography, QKD, COW |
Abstract |
We present a fully automated quantum key distribution prototype running at 625 MHz clock rate. Taking advantage of ultra low loss fibres and low-noise superconducting detectors, we can distribute 6,000 secret bits per second over 100 km and 15 bits per second over 250km. |
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RPLAB @ akorneev @ |
Serial |
610 |
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