| Presentation | 2013-10-03 Fabrication of superconducting single-photon detector with ultralow dark count rate and quantum key distribution over 300 km Hiroyuki SHIBATA, Kaoru SHIMIZU, Toshimori HONJO, Hiroki TAJESUE, Yasuhiro TOKURA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report the fabrication of a superconducting nanowire single-photon detector (SSPD) with an ultralow dark count rate (< 0.1 cps). By introducing optical band-pass filters at the input of the SSPD and cooling the filters at 3K, the dark count rate is reduced less than 1/100 at low bias. We demonstrated quantum key distribution (QKD) experiment over 63 dB channel loss, which is equivalent to 315 km of fiber, using the ultralow dark count SSPDs and the differential phase shift QKD scheme (DPS-QKD). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | superconducting single-photon detector / dark count rate / quantum key distribution / SSPD / DPS-QKD |
| Paper # | SCE2013-30 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2013/9/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| 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) | Fabrication of superconducting single-photon detector with ultralow dark count rate and quantum key distribution over 300 km |
| Sub Title (in English) | |
| Keyword(1) | superconducting single-photon detector |
| Keyword(2) | dark count rate |
| Keyword(3) | quantum key distribution |
| Keyword(4) | SSPD |
| Keyword(5) | DPS-QKD |
| 1st Author's Name | Hiroyuki SHIBATA |
| 1st Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation:NTT Nanophotonic Center, NTT Corporation() |
| 2nd Author's Name | Kaoru SHIMIZU |
| 2nd Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation |
| 3rd Author's Name | Toshimori HONJO |
| 3rd Author's Affiliation | NTT Secure Platform Laboratories, NTT Corporation |
| 4th Author's Name | Hiroki TAJESUE |
| 4th Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation |
| 5th Author's Name | Yasuhiro TOKURA |
| 5th Author's Affiliation | NTT Basic Research Laboratories, NTT Corporation |
| Date | 2013-10-03 |
| Paper # | SCE2013-30 |
| Volume (vol) | vol.113 |
| Number (no) | 232 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |