Phase-Sensitive OTDR Strain Measurement Using Single Mode Operation in Multimode OM4 Fiber

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Phase-Sensitive OTDR Strain Measurement Using Single Mode Operation in Multimode OM4 Fiber

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45th European Conference on Optical Communication (ECOC 2019) — Recommend this title to your library

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  • DOI:  10.1049/cp.2019.1048
  • ISBN: 978-1-83953-185-9
  • Location: Dublin, Ireland
  • Conference date: 22-26 Sept. 2019
  • Format: PDF
We present the first realization of strain sensing in a multimode OM4 optical fiber using phase-sensitive optical time-domain reflectometry. We demonstrate that single mode operation in an OM4 fiber is achievable and allows the fiber strain to be measured in a distributed manner. The 4 km of OM4 fiber is effectively measured with 20 cm spatial resolution which proves that coherent Rayleigh scattering based techniques can be used to interrogate multimode optical fibers.

Inspec keywords: optical time-domain reflectometry; strain measurement; fibre optic sensors; Rayleigh scattering; strain sensors; distributed sensors

Subjects: Measurement of mechanical variables; Fibre optic sensors; fibre gyros; Optical refractometry and reflectometry; Sensing and detecting devices; Stimulated Raman scattering and spectra; CARS; stimulated Brillouin and stimulated Rayleigh scattering and spectra; Fibre optic sensors; Optical variables measurement; Mechanical variables measurement; Fibre optics

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