| Presentation | 2010-01-20 Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode Tadakiyo SEKI, Hiroyuki SHIBATA, Hiroki TAKESUE, Yasuhiro TOKURA, Nobuyuki IMOTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report the pulse-to-pulse timing jitter measurement of a niobium nitride (NbN) superconducting single-photon detector (SSPD) which we fabricated and and 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 large. We also estimated the transmission distances and secure key generation rates for fiber-based quantum key distribution (QKD) when these detectors are used. 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 SSPD's advantages over QKD compared to the APD. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Superconducting nanowire / Single photon detection / Timing Jitter / Quantum key distribution |
| Paper # | SCE2009-26 |
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| Committee | SCE |
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| Conference Date | 2010/1/13(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode |
| Sub Title (in English) | |
| Keyword(1) | Superconducting nanowire |
| Keyword(2) | Single photon detection |
| Keyword(3) | Timing Jitter |
| Keyword(4) | Quantum key distribution |
| 1st Author's Name | Tadakiyo SEKI |
| 1st Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation:Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Hiroyuki SHIBATA |
| 2nd Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation:Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Hiroki TAKESUE |
| 3rd Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation |
| 4th Author's Name | Yasuhiro TOKURA |
| 4th Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation |
| 5th Author's Name | Nobuyuki IMOTO |
| 5th Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| Date | 2010-01-20 |
| Paper # | SCE2009-26 |
| Volume (vol) | vol.109 |
| Number (no) | 364 |
| Page | pp.pp.- |
| #Pages | 5 |
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