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Driessen, E. F. C.; Braakman, F. R.; Reiger, E. M.; Dorenbos, S. N.; Zwiller, V.; de Dood, M. J. A. |
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Impedance model for the polarization-dependent optical absorption of superconducting single-photon detectors |
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Journal Article |
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2009 |
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Eur. Phys. J. Appl. Phys. |
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47 |
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10701 |
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SSPD, SNSPD |
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We measured the single-photon detection efficiency of NbN superconducting single-photon detectors as a function of the polarization state of the incident light for different wavelengths in the range from 488 nm to 1550 nm. The polarization contrast varies from ~% at 488 nm to~0% at 1550 nm, in good agreement with numerical calculations. We use an optical-impedance model to describe the absorption for polarization parallel to the wires of the detector. For the extremely lossy NbN material, the absorption can be kept constant by keeping the product of layer thickness and filling factor constant. As a consequence, the maximum possible absorption is independent of filling factor. By illuminating the detector through the substrate, an absorption efficiency of ~0% can be reached for a detector on Si or GaAs, without the need for an optical cavity. |
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RPLAB @ alex_kazakov @ |
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1062 |
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Takemoto, K.; Nambu, Y.; Miyazawa, T.; Sakuma, Y.; Yamamoto, T.; Yorozu, S.; Arakawa, Y. |
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Title |
Quantum key distribution over 120 km using ultrahigh purity single-photon source and superconducting single-photon detectors |
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Journal Article |
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2015 |
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Sci. Rep. |
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5 |
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14383 |
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SSPD, SNSPD applications, quantum key distribution, QKD |
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Advances in single-photon sources (SPSs) and single-photon detectors (SPDs) promise unique applications in the field of quantum information technology. In this paper, we report long-distance quantum key distribution (QKD) by using state-of-the-art devices: a quantum-dot SPS (QD SPS) emitting a photon in the telecom band of 1.5 μm and a superconducting nanowire SPD (SNSPD). At the distance of 100 km, we obtained the maximal secure key rate of 27.6 bps without using decoy states, which is at least threefold larger than the rate obtained in the previously reported 50-km-long QKD experiment. We also succeeded in transmitting secure keys at the rate of 0.307 bps over 120 km. This is the longest QKD distance yet reported by using known true SPSs. The ultralow multiphoton emissions of our SPS and ultralow dark count of the SNSPD contributed to this result. The experimental results demonstrate the potential applicability of QD SPSs to practical telecom QKD networks. |
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1104 |
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Kahl, O.; Ferrari, S.; Kovalyuk, V.; Goltsman, G. N.; Korneev, A.; Pernice, W. H. P. |
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Title |
Waveguide integrated superconducting single-photon detectors with high internal quantum efficiency at telecom wavelengths |
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Journal Article |
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2015 |
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Sci. Rep. |
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Sci. Rep. |
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5 |
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10941 (1 to 11) |
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optical waveguides; waveguide integrated SSPD; waveguide SSPD; nanophotonics |
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Superconducting nanowire single-photon detectors (SNSPDs) provide high efficiency for detecting individual photons while keeping dark counts and timing jitter minimal. Besides superior detection performance over a broad optical bandwidth, compatibility with an integrated optical platform is a crucial requirement for applications in emerging quantum photonic technologies. Here we present efficiencies close to unity at 1550nm wavelength. This allows for the SNSPDs to be operated at bias currents far below the critical current where unwanted dark count events reach milli-Hz levels while on-chip detection efficiencies above 70% are maintained. The measured dark count rates correspond to noiseequivalent powers in the 10–19W/Hz–1/2 range and the timing jitter is as low as 35ps. Our detectors are fully scalable and interface directly with waveguide-based optical platforms. |
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PMID:26061283; PMCID:PMC4462017 |
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RPLAB @ kovalyuk @ |
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946 |
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Kovalyuk, V.; Ferrari, S.; Kahl, O.; Semenov, A.; Shcherbatenko, M.; Lobanov, Y.; Ozhegov, R.; Korneev, A.; Kaurova, N.; Voronov, B.; Pernice, W.; Gol'tsman, G. |
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Title |
On-chip coherent detection with quantum limited sensitivity |
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Journal Article |
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2017 |
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Sci Rep |
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Sci Rep |
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7 |
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1 |
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4812 |
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waveguide, SSPD, SNSPD |
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While single photon detectors provide superior intensity sensitivity, spectral resolution is usually lost after the detection event. Yet for applications in low signal infrared spectroscopy recovering information about the photon's frequency contributions is essential. Here we use highly efficient waveguide integrated superconducting single-photon detectors for on-chip coherent detection. In a single nanophotonic device, we demonstrate both single-photon counting with up to 86% on-chip detection efficiency, as well as heterodyne coherent detection with spectral resolution f/f exceeding 10(11). By mixing a local oscillator with the single photon signal field, we observe frequency modulation at the intermediate frequency with ultra-low local oscillator power in the femto-Watt range. By optimizing the nanowire geometry and the working parameters of the detection scheme, we reach quantum-limited sensitivity. Our approach enables to realize matrix integrated heterodyne nanophotonic devices in the C-band wavelength range, for classical and quantum optics applications where single-photon counting as well as high spectral resolution are required simultaneously. |
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National Research University Higher School of Economics, Moscow, 101000, Russia. ggoltsman@hse.ru |
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2045-2322 |
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PMID:28684752; PMCID:PMC5500578 |
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RPLAB @ kovalyuk @ |
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1129 |
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Marsili, F.; Verma, V. B.; Stern, J. A.; Harrington, S.; Lita, A. E.; Gerrits, T.; Vayshenker, I.; Baek, B.; Shaw, M. D.; Mirin, R. P.; Nam, S. W. |
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Title |
Detecting single infrared photons with 93% system efficiency |
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Journal Article |
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2013 |
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Nat. Photon. |
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7 |
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3 |
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210-214 |
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SSPD quantum efficiency |
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Single-photon detectors1 at near-infrared wavelengths with high system detection efficiency (>90%), low dark count rate (<1 c.p.s.), low timing jitter (<100 ps) and short reset time (<100 ns) would enable landmark experiments in a variety of fields2, 3, 4, 5, 6. Although some of the existing approaches to single-photon detection fulfil one or two of the above specifications1, to date, no detector has met all of the specifications simultaneously. Here, we report on a fibre-coupled single-photon detection system that uses superconducting nanowire single-photon detectors7 and closely approaches the ideal performance of single-photon detectors. Our detector system has a system detection efficiency (including optical coupling losses) greater than 90% in the wavelength range λ = 1,520–1,610 nm, with a device dark count rate (measured with the device shielded from any background radiation) of ~1 c.p.s., timing jitter of ~150 ps full-width at half-maximum (FWHM) and reset time of 40 ns. |
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1056 |
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Takesue, Hiroki; Nam, Sae Woo; Zhang, Qiang; Hadfield, Robert H.; Honjo, Toshimori; Tamaki, Kiyoshi; Yamamoto, Yoshihisa |
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Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors |
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2007 |
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Nature Photonics |
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Nat. Photon. |
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1 |
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343-348 |
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quantum cryptography, SSPD, QKD, DSP |
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RPLAB @ akorneev @ |
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609 |
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Heeres, R.W.; Dorenbos, S.N.; Koene, B.; Solomon, G.S.; Kouwenhoven, L.P.; Zwiller, V. |
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On-Chip Single Plasmon Detection |
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Journal Article |
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2010 |
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Nano Letters |
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Nano Lett. |
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10 |
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661-664 |
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optical antennas; SSPD; Single surface plasmons; superconducting detectors; semiconductor quantum dots; nanophotonics |
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Surface plasmon polaritons (plasmons) have the potential to interface electronic and optical devices. They could prove extremely useful for integrated quantum information processing. Here we demonstrate on-chip electrical detection of single plasmons propagating along gold waveguides. The plasmons are excited using the single-photon emission of an optically emitting quantum dot. After propagating for several micrometers, the plasmons are coupled to a superconducting detector in the near-field. Correlation measurements prove that single plasmons are being detected. |
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RPLAB @ akorneev @ |
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620 |
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Manus, M. K. Mc; Kash, J. A.; Steen, S. E.; Polonsky, S.; Tsang, J.C.; Knebel, D. R.; Huott, W. |
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PICA: Backside failure analysis of CMOS circuits using picosecond imaging circuit analysis |
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2000 |
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Microelectronics Reliability |
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Microelectronics Reliability |
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40 |
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1353-1358 |
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SSPD, CMOS testing |
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Normal operation of complementary metal-oxide semiconductor (CMOS) devices entails the emission of picosecond pulses of light, which can be used to diagnose circuit problems. The pulses that are observed from submicron sized field effect transistors (FETs) are synchronous with logic state switching. Picosecond Imaging Circuit Analysis (PICA), a new optical imaging technique combining imaging with timing, spatially resolves individual devices at the 0.5 micron level and switching events on a 10 picosecond timescale. PICA is used here for the diagnostics of failures on two VLSI microprocessors. |
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1054 |
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Seki, T.; Shibata, H.; Takesue, H.; Tokura, Y.; Imoto, N. |
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Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode |
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Journal Article |
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2010 |
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Phys. C |
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Phys. C |
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470 |
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20 |
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1534-1537 |
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SSPD; APD; jitter |
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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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RPLAB @ akorneev @ |
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613 |
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Ferrari, S.; Kovalyuk, V.; Hartmann, W.; Vetter, A.; Kahl, O.; Lee, C.; Korneev, A.; Rockstuhl, C.; Gol'tsman, G.; Pernice, W. |
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Hot-spot relaxation time current dependence in niobium nitride waveguide-integrated superconducting nanowire single-photon detectors |
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2017 |
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Opt. Express |
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Opt. Express |
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25 |
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8 |
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8739-8750 |
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SSPD, SNSPD, photon counting; Infrared; Quantum detectors; Integrated optics; Multiphoton processes; Photon statistics |
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We investigate how the bias current affects the hot-spot relaxation dynamics in niobium nitride. We use for this purpose a near-infrared pump-probe technique on a waveguide-integrated superconducting nanowire single-photon detector driven in the two-photon regime. We observe a strong increase in the picosecond relaxation time for higher bias currents. A minimum relaxation time of (22 +/- 1)ps is obtained when applying a bias current of 50% of the switching current at 1.7 K bath temperature. We also propose a practical approach to accurately estimate the photon detection regimes based on the reconstruction of the measured detector tomography at different bias currents and for different illumination conditions. |
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RPLAB @ kovalyuk @ |
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1118 |
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Минаева, Ольга Вячеславовна |
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Быстродействующий однофотонный детектор на основе тонкой сверхпроводниковой пленки NbN |
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2009 |
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М. МПГУ |
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SSPD |
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Ph.D. thesis |
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russian |
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585 |
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Stucki, Damien; Barreiro, Claudio; Fasel, Sylvain; Gautier, Jean-Daniel; Gay, Olivier; Gisin, Nicolas; Thew, Rob; Thoma, Yann; Trinkler, Patrick; Vannel, Fabien; Zbinden, Hugo |
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Continuous high speed coherent one-way quantum key distribution |
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2009 |
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Optics Express |
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Opt. Express |
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17 |
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16 |
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13326-13334 |
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quantum cryptography, QKD, PNS, SSPD, coherent one way, COW |
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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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Stevens, M.; Hadfeld, R.; Schwall, R.; Nam, S.W.; and Mirin, R. |
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Quantum dot single photon sources studied with superconducting single photon detectors |
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2006 |
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IEEE J. Sel. Topics Quantum Electron. |
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12 |
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6 |
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1255-1267 |
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SSPD, jitter, QD, QW |
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RPLAB @ akorneev @ |
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612 |
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Yang, J. K. W.; Kerman, A. J.; Dauler, E. A.; Anant, V.; Rosfjord, K. M.; Berggren, K. K. |
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Modeling the electrical and thermal response of superconducting nanowire single-photon detectors |
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Journal Article |
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2007 |
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IEEE Trans. Appl. Supercond. |
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17 |
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2 |
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581 - 585 |
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SSPD, modeling |
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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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Манова, Н.Н.; Корнеева, Ю.П.; Корнеев, А.А.; Слыш, В.; Воронов, Б.М.; Гольцман, Г.Н. |
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Title |
Сверхпроводниковый NbN однофотонный детектор, интегрированный с четвертьволновым резонатором |
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Journal Article |
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Year |
2011 |
Publication |
Письма в Журнал технической физики |
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ПЖТФ |
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37 |
Issue |
10 |
Pages |
7 |
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SSPD |
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Исследована спектральная зависимость квантовой эффективности сверхпроводниковых NbN однофотонных детекторов, интегрированных с оптическими четвертьволновыми резонаторами с использованием диэлектриков Si3N4, SiO2, SiO. |
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RPLAB @ gujma @ |
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637 |
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