| Presentation | 2023-05-26 [Special Invited Talk] Real-time 50-Gbit/s Spatially Multiplexed Quantum Random Number Generator Ken Tanizawa, Kentaro Kato, Fumio Futami, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Unpredictable random number generation is an essential technology for cryptographic applications. Quantum random number generators, which generate random numbers utilizing randomness guaranteed by quantum mechanics, have attracted much attention in recent years. A promising quantum randomness for an entropy source is vacuum fluctuation, which can be detected using a homodyne setup with a laser source and a beam splitter. Quantum random number generators based on vacuum fluctuation can easily and stably realize high-speed random number generation. In this paper, as a PD report of OFC2023, we report a spatially multiplexed quantum random number generator based on vacuum fluctuation using a single semiconductor laser diode and an integrated beam splitter. The random number generator obtains four vacuum fluctuations over a wide bandwidth of more than 2 GHz. Subsequently, random numbers are extracted in parallel using an FPGA circuit. A real-time random number generation rate of 50-Gbit/s is achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Random number generation / Vacuum fluctuation / Homodyne measurement / Spatial multiplexing |
| Paper # | OCS2023-7,OPE2023-7,LQE2023-7 |
| Date of Issue | 2023-05-19 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OCS / LQE / OPE |
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| Conference Date | 2023/5/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Takeshi Hoshida(Fujitsu) / Junichi Takahara(Osaka Univ.) / Toshikazu Hashimoto(NTT) |
| Vice Chair | / Kosuke Nishimura(KDDI Research) / Taro Arakawa(Yokohama National Univ.) |
| Secretary | (NTT) / Kosuke Nishimura(Sumitomo Electric Industries) / Taro Arakawa(Fujitsu) |
| Assistant | / Yoshiaki Nishijima(Yokohama National Univ.) / Nobuhiko Nishiyama(Tokyo Inst. of Tech.) / Yuhei Ishizaka(Kanto Gakuin Univ.) / Takeshi Umeki(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Optical Communication Systems / Technical Committee on Lasers and Quantum Electronics / Technical Committee on OptoElectronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Special Invited Talk] Real-time 50-Gbit/s Spatially Multiplexed Quantum Random Number Generator |
| Sub Title (in English) | |
| Keyword(1) | Random number generation |
| Keyword(2) | Vacuum fluctuation |
| Keyword(3) | Homodyne measurement |
| Keyword(4) | Spatial multiplexing |
| 1st Author's Name | Ken Tanizawa |
| 1st Author's Affiliation | Tamagawa University(Tamagawa Univ.) |
| 2nd Author's Name | Kentaro Kato |
| 2nd Author's Affiliation | Tamagawa University(Tamagawa Univ.) |
| 3rd Author's Name | Fumio Futami |
| 3rd Author's Affiliation | Tamagawa University(Tamagawa Univ.) |
| Date | 2023-05-26 |
| Paper # | OCS2023-7,OPE2023-7,LQE2023-7 |
| Volume (vol) | vol.123 |
| Number (no) | OCS-56,OPE-57,LQE-58 |
| Page | pp.pp.26-31(OCS), pp.26-31(OPE), pp.26-31(LQE), |
| #Pages | 6 |
| Date of Issue | 2023-05-19 (OCS, OPE, LQE) |