| Presentation | 2019-01-17 High-spatial-resolution Brillouin optical correlation-domain analysis distributed sensor using short-pulse sources Shingo Akai, Takuma Matsumoto, Masayuki Matsumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As one of distributed optical fiber sensing methods using Brillouin scattering, Brillouin optical fiber correlation-domain analysis (BOCDA) that specifies a Brillouin frequency shift (BFS) measurement point by utilizing correlation between modulated pump and probe waves. In BOCDA using pseudo-random phase modulation, it is known that the spatial resolution of BFS measurement is VgT/2 (Vg is the group velocity of in optical fiber, and T is the bit time of modulation). In this report, experiments show that the spatial resolution can be reduced without increasing the modulation rate (1/T) by using RZ shape instead of NRZ as the modulation method of pump of light and probe waves. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Brillouin scattering / Brillouin optical correlation-domain analysis / Pseudo-random phase modulation / Short-pulse sources |
| Paper # | PN2018-31,EMT2018-65,OPE2018-140,LQE2018-150,EST2018-78,MWP2018-49 |
| Date of Issue | 2019-01-10 (PN, EMT, OPE, LQE, EST, MWP) |
| Conference Information | |
| Committee | PN / EMT / OPE / EST / MWP / LQE / IEE-EMT |
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| Conference Date | 2019/1/17(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University Nakanoshima Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroshi Hasegawa(Nagoya Univ.) / Akira Hirose(Univ. of Tokyo) / Kouki Sato(Furukawa Electric Industries) / Akimasa Hirata(Nagoya Inst. of Tech.) / Tetsuya Kawanishi(Waseda Univ.) / Kiichi Hamamoto(Kyusyu Univ.) / Keiji Goto(National Defense Academy) |
| Vice Chair | Haruki Ogoshi(Furukawa Electric) / Takehiro Tsuritani(KDDI Research) / Hideaki Furukawa(NICT) / Koichi Hirayama(Kitami Inst. of Tech.) / Hiroshi Takahashi(Sophia Univ.) / Shinichiro Ohnuki(Nihon Univ.) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.) / Naoto Yoshimoto(Chitose Inst. of Science and Tech.) / Hiroshi Aruga(Mitsubishi Electric) |
| Secretary | Haruki Ogoshi(NICT) / Takehiro Tsuritani(Univ. of Fukui) / Hideaki Furukawa(NTT) / Koichi Hirayama(Tokyo Metro. Coll. of Tech) / Hiroshi Takahashi(Fukuoka Inst.of Tech.) / Shinichiro Ohnuki(Univ. of Tokyo) / Masayuki Kimishima(NICT) / Jun Shibayama(CIST) / Naoto Yoshimoto(National Inst. of Tech.,Sendai College) / Hiroshi Aruga(NICT) / (Chiba Inst. of Tech.) |
| Assistant | Keijiro Suzuki(AIST) / Junichiro Sugisaka(Kitami Inst. of Tech.) / Yuya Shoji(Tokyo Inst. of Tech.) / Kazunori Seno(NTT) / Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu) / Kensuke Ikeda(CRIEPI) / Kosuke Nishimura(KDDI Research) / Masaya Nagai(Osaka Univ.) / Yoshihiro Naka(Kyushu Univ. of Health and Welfare) |
| Paper Information | |
| Registration To | Technical Committee on Photonic Network / Technical Committee on Electromagnetic Theory / Technical Committee on OptoElectronics / Technical Committee on Electronics Simulation Technology / Technical Committee on Microwave and Millimeter-wave Photonics / Technical Committee on Lasers and Quantum Electronics / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-spatial-resolution Brillouin optical correlation-domain analysis distributed sensor using short-pulse sources |
| Sub Title (in English) | |
| Keyword(1) | Brillouin scattering |
| Keyword(2) | Brillouin optical correlation-domain analysis |
| Keyword(3) | Pseudo-random phase modulation |
| Keyword(4) | Short-pulse sources |
| 1st Author's Name | Shingo Akai |
| 1st Author's Affiliation | Wakayama University(Wakayama Univ.) |
| 2nd Author's Name | Takuma Matsumoto |
| 2nd Author's Affiliation | Wakayama University(Wakayama Univ.) |
| 3rd Author's Name | Masayuki Matsumoto |
| 3rd Author's Affiliation | Wakayama University(Wakayama Univ.) |
| Date | 2019-01-17 |
| Paper # | PN2018-31,EMT2018-65,OPE2018-140,LQE2018-150,EST2018-78,MWP2018-49 |
| Volume (vol) | vol.118 |
| Number (no) | PN-396,EMT-397,OPE-398,LQE-399,EST-400,MWP-401 |
| Page | pp.pp.1-6(PN), pp.1-6(EMT), pp.1-6(OPE), pp.1-6(LQE), pp.1-6(EST), pp.1-6(MWP), |
| #Pages | 6 |
| Date of Issue | 2019-01-10 (PN, EMT, OPE, LQE, EST, MWP) |