| Presentation | 2020-11-13 Notchless spectra realized by Brillouin optical correlation domain analysis using pulse train arranged at power intervals Daiki Miyake, Yudai Hattori, Fumihiko Ito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A signal using pulse trains arranged at power intervals applicable to the correlation domain analysis is proposed. The accuracy of Brillouin spectra measured by conventional correlation domain analysis method may be reduced due to the notch of uncorrelated gain. On the other hand, the uncorrelated gain of the proposed method is flat and does not degrade the accuracy of the detection of the peak gain frequency, so it can be measured with high accuracy. In the empirical experiment, the measurement of the distribution over 94 m fiber with a spatial resolution of 5 cm was demonstrated and a distinct change in the Brillouin frequency shift was observed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Brillouin scattering / Optical fiber sensors / The correlation-domain analysis / Sensing of strain and tenperture |
| Paper # | OFT2020-41 |
| Date of Issue | 2020-11-05 (OFT) |
| Conference Information | |
| Committee | OFT / ITE-BCT / OCS / IEE-CMN |
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| Conference Date | 2020/11/12(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yuji Matsuura(Tohoku Univ.) / / Joji Maeda(Tokyo Univ. of Science) / Shun Morimura(CRIEPI) |
| Vice Chair | / / / Kouji Hirata(Kansai Univ) |
| Secretary | (NTT) / (Sumitomo Electric) / / Kouji Hirata(NTT) |
| Assistant | Hajime Arao(Sumitomo Electric) / Yukihiro Goto(NTT) / / / Yuuichi Shinohara(TEPCO Power Grid) / Akihiro Tanaka(CRIEPI) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology / Technical Group on Broadcasting Technology / Technical Committee on Optical Communication Systems / Technical Meeting on Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Notchless spectra realized by Brillouin optical correlation domain analysis using pulse train arranged at power intervals |
| Sub Title (in English) | |
| Keyword(1) | Brillouin scattering |
| Keyword(2) | Optical fiber sensors |
| Keyword(3) | The correlation-domain analysis |
| Keyword(4) | Sensing of strain and tenperture |
| 1st Author's Name | Daiki Miyake |
| 1st Author's Affiliation | Shimane University(Shimane Univ.) |
| 2nd Author's Name | Yudai Hattori |
| 2nd Author's Affiliation | Shimane University(Shimane Univ.) |
| 3rd Author's Name | Fumihiko Ito |
| 3rd Author's Affiliation | Shimane University(Shimane Univ.) |
| Date | 2020-11-13 |
| Paper # | OFT2020-41 |
| Volume (vol) | vol.120 |
| Number (no) | OFT-230 |
| Page | pp.pp.21-26(OFT), |
| #Pages | 6 |
| Date of Issue | 2020-11-05 (OFT) |