| Download | - View final version: A fiber optic accelerometer using two-mode fibers with an off-center core (PDF, 1.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1117/12.141306 |
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| Author | Search for: Lisboa, Osni; Search for: de Oliveira, C. A. S.1; Search for: Jen, Cheng-Kuei1; Search for: Oliveira, J. Edimar B.; Search for: Almeida, Sergio F. M.; Search for: Carrara, Sidney L. |
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| Editor | Search for: Claus, Richard O.; Search for: Rogowski, Robert S. |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Conference | Fibers '92, September 8-11, 1992, Boston, Massachusetts |
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| Subject | fiber optics; phase shifts; sensors; smart structures; acoustic-optics; signal detection; optical fibers |
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| Abstract | The sensing mechanism of an optical fiber accelerometer based on the interaction between the frequency shifted two modes in a two-mode fiber with an off-center core is presented. When the fiber is bent, by the action of an acceleration in a specific direction, due to the asymmetry induced by the off-center core, there exists a preferential net strain. The bending causes a tension or a compression field in the fiber and provides a positive or negative acceleration, respectively. The frequency shift is achieved by an collinear acousto-optic interaction in the two-mode fiber. We show both theoretical analysis and experimental results. Several approaches which can enhance the sensitivity are also provided. |
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| Publication date | 1993-03-26 |
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| Publisher | Society of Photo-Optical Instrumentation Engineers (SPIE) |
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| Licence | - Copyright 1993 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRC-IMI92TC-10121-1268-G
CNRC 33726 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 15401f8e-fba6-4c5e-9972-cea13fade64a |
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| Record created | 2020-08-04 |
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| Record modified | 2023-09-28 |
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