Presentation 2022-02-24
Evaluation of bending displacement characteristics for a 50-3-50 type hetero-core structured optical fiber sensor
Miyuki Kadokura, Michiko Nishiyama, Kazuhiro Watanabe,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this study, we aim to realize the application of a hetero-core optical fiber bending sensor, which consists of a multimode optical fiber with a core diameter of 50 μm and single-mode optical fiber with a core diameter of 3 μm for the transmission line and for the hetero-core portion, respectively. In this paper, we evaluated the optical loss characteristics of a 50-3-50 type hetero-core optical fiber structure against bending displacement for sensors with different insertion lengths in the hetero-core portion. It was confirmed that the effect of bending displacement on the transmission line was reduced by using a bending loss insensitive multimode fiber. The 50-3-50 type hetero-core optical fiber with bending loss insensitive multimode fiber at an insertion length of 1.0 mm was shown to have high linearity with a sensitivity of 0.581 dB/mm for displacements of up to 5.0 mm. In addition, the optical loss monotonically increased with displacement for insertion lengths of 1.5, 2.0, 2.5, and 3.0 mm, suggesting that the sensor can be applied as a bending sensor within the range of linearity.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Fiber optic sensor / hetero-core optical fiber sensor / multimode optical fiber / bending sensor
Paper # OFT2021-70,OPE2021-49
Date of Issue 2022-02-17 (OFT, OPE)

Conference Information
Committee OPE / OFT / OCS
Conference Date 2022/2/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Takaaki Ishigure(Keio Univ.) / Yuji Matsuura(Tohoku Univ.) / Takeshi Hoshida(Fujitsu)
Vice Chair Toshikazu Hashimoto(NTT)
Secretary Toshikazu Hashimoto(Tokushima Univ.) / (Kagoshima Univ.) / (NTT)
Assistant Hirokazu Kobayashi(Kochi Univ. of Tech) / Tadashi Murao(Mitsubishi Electric) / Yukihiro Goto(NTT) / Minoru Takahashi(Fujikura)

Paper Information
Registration To Technical Committee on OptoElectronics / Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Evaluation of bending displacement characteristics for a 50-3-50 type hetero-core structured optical fiber sensor
Sub Title (in English)
Keyword(1) Fiber optic sensor
Keyword(2) hetero-core optical fiber sensor
Keyword(3) multimode optical fiber
Keyword(4) bending sensor
1st Author's Name Miyuki Kadokura
1st Author's Affiliation Soka University(Soka Univ.)
2nd Author's Name Michiko Nishiyama
2nd Author's Affiliation Soka University(Soka Univ.)
3rd Author's Name Kazuhiro Watanabe
3rd Author's Affiliation Soka University(Soka Univ.)
Date 2022-02-24
Paper # OFT2021-70,OPE2021-49
Volume (vol) vol.121
Number (no) OFT-376,OPE-377
Page pp.pp.5-8(OFT), pp.5-8(OPE),
#Pages 4
Date of Issue 2022-02-17 (OFT, OPE)