Records |
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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no |
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Serial |
1517 |
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Author |
Минаева, Ольга Вячеславовна |
Title |
Быстродействующий однофотонный детектор на основе тонкой сверхпроводниковой пленки NbN |
Type |
Manuscript |
Year |
2009 |
Publication |
М. МПГУ |
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Issue |
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Pages |
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Keywords |
SSPD |
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Thesis |
Ph.D. thesis |
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Language |
russian |
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no |
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Serial |
585 |
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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 @ |
Serial |
602 |
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Author |
Verevkin, A.; Williams, C.; Gol’tsman, G. N.; Sobolewski, R.; Gilbert, G. |
Title |
Single-photon superconducting detectors for practical high-speed quantum cryptography |
Type |
Miscellaneous |
Year |
2001 |
Publication |
OFCC/ICQI |
Abbreviated Journal |
OFCC/ICQI |
Volume |
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Issue |
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Pages |
Pa3 |
Keywords |
NbN SSPD, SNSPD, QKD, quantum cryptography |
Abstract |
We have developed an ultrafast superconducting single-photon detector with negligible dark counting rate. The detector is based on an ultrathin, submicron-wide NbN meander-type stripe and can detect individual photons in the visible to near-infrared wavelength range at a rate of at least 10 Gb/s. The above counting rate allows us to implement the NbN device to unconditionally secret quantum key distRochester, New Yorkribution in a practical, high-speed system using real-time Vernam enciphering. |
Address |
Rochester, New York |
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Publisher |
Optical Society of America |
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Conference |
Optical Fiber Communication Conference and International Conference on Quantum Information |
Notes |
-- from poster session. |
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no |
Call Number |
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Serial |
1544 |
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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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no |
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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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no |
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RPLAB @ akorneev @ |
Serial |
610 |
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Author |
Stevens, M.; Hadfield, R.; Schwall, R.; Nam, S.W.; Mirin, R.; Gupta, J. |
Title |
Fast lifetime measurements of infrared emitters using a low-jitter superconduct- ing single-photon detector |
Type |
Journal Article |
Year |
2006 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
89 |
Issue |
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Pages |
031109 |
Keywords |
SSPD, jitter, QD, QW |
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no |
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RPLAB @ akorneev @ |
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611 |
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Author |
Stevens, M.; Hadfeld, R.; Schwall, R.; Nam, S.W.; and Mirin, R. |
Title |
Quantum dot single photon sources studied with superconducting single photon detectors |
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Journal Article |
Year |
2006 |
Publication |
IEEE J. Sel. Topics Quantum Electron. |
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Volume |
12 |
Issue |
6 |
Pages |
1255-1267 |
Keywords |
SSPD, jitter, QD, QW |
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no |
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RPLAB @ akorneev @ |
Serial |
612 |
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Author |
Seki, T.; Shibata, H.; Takesue, H.; Tokura, Y.; Imoto, N. |
Title |
Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode |
Type |
Journal Article |
Year |
2010 |
Publication |
Phys. C |
Abbreviated Journal |
Phys. C |
Volume |
470 |
Issue |
20 |
Pages |
1534-1537 |
Keywords |
SSPD; APD; jitter |
Abstract |
We report the pulse-to-pulse timing jitter measurement of a niobium nitride (NbN) superconducting single-photon detector (SSPD) and an InGaAs avalanche photodiode (APD) at 1550-nm wavelength. A direct comparison of their timing jitter was performed by using the same experimental configuration to measure both detectors. The measured jitter of the SSPD and the APD are 75 and 84 ps at full-width at half-maximum (FWHM), and 138 and 384 ps at full-width at tenth-maximum (FWTM), respectively. The jitter of the SSPD remains small at FWTM while that of APD is wide. We also estimated the transmission distances and secure key generation rates for fiber-based quantum key distribution (QKD) which uses these detectors. The estimated transmission distances of the APD are 86 km and 107 km with respect to 1 ns and 100 ps time windows, respectively, and those of the SSPD are 125 km and 172 km with respect to 1 ns and 100 ps time windows, respectively. This estimation indicates the SSPDЃfs advantages for QKD compared to the APD. |
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no |
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RPLAB @ akorneev @ |
Serial |
613 |
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Author |
Yang, J. K. W.; Kerman, A. J.; Dauler, E. A.; Anant, V.; Rosfjord, K. M.; Berggren, K. K. |
Title |
Modeling the electrical and thermal response of superconducting nanowire single-photon detectors |
Type |
Journal Article |
Year |
2007 |
Publication |
IEEE Trans. Appl. Supercond. |
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Volume |
17 |
Issue |
2 |
Pages |
581 - 585 |
Keywords |
SSPD, modeling |
Abstract |
We modeled the response of superconducting nanowire single-photon detectors during a photodetection event, taking into consideration only the thermal and electrical properties of a superconducting NbN nanowire on a sapphire substrate. Our calculations suggest that heating which occurs after the formation of a photo-induced resistive barrier is responsible for the generation of a measurable voltage pulse. We compared this numerical result with experimental data of a voltage pulse from a slow device, i.e. large kinetic inductance, and obtained a good fit. Using this electro-thermal model, we estimated the temperature rise and the resistance buildup in the nanowire, and the return current at which the nanowire becomes superconducting again. We also show that the reset time of these photodetectors can be decreased by the addition of a series resistance and provide supporting experimental data. Finally we present preliminary results on a detector latching behavior that can also be explained using the electro-thermal model. |
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625 |
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