| Presentation | 2017-05-25 Simplified and high speed BOTDA employing frequency-swept pulses Chihiro Kito, Hiroshi Takahashi, Kunihiro Toge, Tetsuya Manabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, research on optical measurement technology using Brillouin scattering capable of measuring temperature and strain distribution has been conducted aiming at applying the structural health monitoring. We have proposed a vibration measurement method, employing frequency sweep pulse, which can measure Brillouin frequency shift change from oscilloscope waveform of received probe pulse. In this paper, we demonstrate the Brillouin frequency shift distribution measurement of 10 km fiber within a measurement time of 0.33 s with an accuracy of ± 0.9 MHz, and describe the advantages of the proposed method with the simplified equipment setup to the conventional BOTDA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Brillouin gain analysis / Optical fiber sensing / Distributed measurement |
| Paper # | OFT2017-2 |
| Date of Issue | 2017-05-18 (OFT) |
| Conference Information | |
| Committee | OFT |
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| Conference Date | 2017/5/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Shimane Univ. (Matsue campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masayuki Shigematsu(Sumitomo Electric Industries) |
| Vice Chair | |
| Secretary | (NTT) |
| Assistant | Terutake Kobayashi(Fujikura) / Ikutaro Ogushi(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simplified and high speed BOTDA employing frequency-swept pulses |
| Sub Title (in English) | |
| Keyword(1) | Brillouin gain analysis |
| Keyword(2) | Optical fiber sensing |
| Keyword(3) | Distributed measurement |
| 1st Author's Name | Chihiro Kito |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Hiroshi Takahashi |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Kunihiro Toge |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 4th Author's Name | Tetsuya Manabe |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2017-05-25 |
| Paper # | OFT2017-2 |
| Volume (vol) | vol.117 |
| Number (no) | OFT-54 |
| Page | pp.pp.7-10(OFT), |
| #Pages | 4 |
| Date of Issue | 2017-05-18 (OFT) |