Presentation | 2019-02-15 Measurement of Ring Circumferential Strain with Actually Observed Brillouin Gain Spectra Kento Nishimura, Shusuke Narieda, Hiroshi Naruse, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | A ring circumferential strain measurement method using a model of Brillouin gain spectrum (BGS) has been proposed. In this method, the BGS model is fitted to BGSs observed in an optical fiber installed around a ring. In addition, the characteristics of the strain measurement error with respect to BGS-observation and load conditions have been clarified by simulations. This report describes experiments that we conducted to investigate the availability of this method. In these experiments, BGSs were observed in optical fibers undergoing strains produced the ring under concentrated and distributed loads, and strains were obtained from these BGSs. Instead of the spatially varying strains formed in the ring by these loads, the temporally varying strains equivalent to those strains, namely, deforming the BGSs in analogy with the spatial strains were formed in the optical fiber, and the BGSs were observed. The errors of the strains measured under both loads were 2% of the difference between the maximum and minimum strains, that is, the distribution range of the strain formed in the ring. This result indicates that this method is effective in the observed BGSs. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Optical Fiber Sensing / Brillouin Gain Spectrum / Ring / Experiment / Strain Measurement / Error |
Paper # | OFT2018-80,OPE2018-209 |
Date of Issue | 2019-02-07 (OFT, OPE) |
Conference Information | |
Committee | OFT / OCS / OPE |
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Conference Date | 2019/2/14(2days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | Fumihiko Ito(Shimane Univ.) / Itsuro Morita(KDDI Research) / Kouki Sato(Furukawa Electric Industries) |
Vice Chair | / / Hiroshi Takahashi(Sophia Univ.) |
Secretary | (Furukawa Electric) / (NTT) / Hiroshi Takahashi(NTT) |
Assistant | Hiroshi Watanabe(NTT) / Masateru Tadakuma(Furukawa Electric) / / Yuya Shoji(Tokyo Inst. of Tech.) / Kazunori Seno(NTT) |
Paper Information | |
Registration To | Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / 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) | Measurement of Ring Circumferential Strain with Actually Observed Brillouin Gain Spectra |
Sub Title (in English) | |
Keyword(1) | Optical Fiber Sensing |
Keyword(2) | Brillouin Gain Spectrum |
Keyword(3) | Ring |
Keyword(4) | Experiment |
Keyword(5) | Strain Measurement |
Keyword(6) | Error |
1st Author's Name | Kento Nishimura |
1st Author's Affiliation | Mie University(Mie Univ.) |
2nd Author's Name | Shusuke Narieda |
2nd Author's Affiliation | Mie University(Mie Univ.) |
3rd Author's Name | Hiroshi Naruse |
3rd Author's Affiliation | Mie University(Mie Univ.) |
Date | 2019-02-15 |
Paper # | OFT2018-80,OPE2018-209 |
Volume (vol) | vol.118 |
Number (no) | OFT-444,OPE-445 |
Page | pp.pp.53-56(OFT), pp.85-88(OPE), |
#Pages | 4 |
Date of Issue | 2019-02-07 (OFT, OPE) |