| Presentation | 2021-10-14 Multipoint vibration sensing using low-reflective FBG-FPIs Atsushi Wada, Koki Nakaya, Koken Fukushima, Satoshi Tanaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A Fabry Perot interferometer (FPI) consisting of low reflective fiber Bragg gratings (FBG) has a spectrum with a sinusoidal structure with a period determined by the length of the FBG FPI. Multiple point sensing is possible by installing multiple low reflective FBG-FPIs on one fiber and analyzing the reflection spectrum of that fiber by the frequency division multiplexing method. Wavelength sweeping with a modulated laser diode allows fast sweeping. A demonstration experiment to simultaneously measure strain applied to two low reflective FBG-FPI sensors with a measurement time of 2 μs is reported. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | FBG / optical fiber sensor |
| Paper # | OFT2021-43 |
| Date of Issue | 2021-10-07 (OFT) |
| Conference Information | |
| Committee | OFT |
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| Conference Date | 2021/10/14(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.) |
| Vice Chair | |
| Secretary | (NTT) |
| Assistant | Yukihiro Goto(NTT) / Minoru Takahashi(Fujikura) |
| 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) | Multipoint vibration sensing using low-reflective FBG-FPIs |
| Sub Title (in English) | study of measurement speed |
| Keyword(1) | FBG |
| Keyword(2) | optical fiber sensor |
| 1st Author's Name | Atsushi Wada |
| 1st Author's Affiliation | National Defense Academy(NDA) |
| 2nd Author's Name | Koki Nakaya |
| 2nd Author's Affiliation | National Defense Academy(NDA) |
| 3rd Author's Name | Koken Fukushima |
| 3rd Author's Affiliation | National Defense Academy(NDA) |
| 4th Author's Name | Satoshi Tanaka |
| 4th Author's Affiliation | National Defense Academy(NDA) |
| Date | 2021-10-14 |
| Paper # | OFT2021-43 |
| Volume (vol) | vol.121 |
| Number (no) | OFT-199 |
| Page | pp.pp.85-88(OFT), |
| #Pages | 4 |
| Date of Issue | 2021-10-07 (OFT) |