Curvature and Temperature Discrimination Using Multimode Interference Fiber Optic Structures-A Proof of Concept

Francisco Xavier Malcata

doi:10.1109/JLT.2012.2222865

Curvature and Temperature Discrimination Using Multimode Interference Fiber Optic Structures-A Proof of Concept

Francisco Xavier Malcata

Instituto de Tecnologia Química e Biológica António Xavier (ITQB)

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Singlemode-multimode-singlemode fiber structures (SMS) based on distinct sections of a pure silica multimode fiber (coreless-MMF) with diameters of 125 and 55 mu m, were reported for the measurement of curvature and temperature. The sensing concept relies on the multimode interference that occurs in the coreless-MMF section and, in accordance with the length of the MMF section used, two fiber devices were developed: one based on a bandpass filter (self-image effect) and the other on a band-rejection filter. Maximum sensitivities of 64.7 nm.m and 13.08 pm/degrees C could be attained, for curvature and temperature, respectively, using the band-rejection filter with 55 mu m-MMF diameter. A proof of concept was also explored for the simultaneous measurement of curvature and temperature by means of the matrix method.

Original language	Unknown
Pages (from-to)	3569-3575
Journal	Journal of Lightwave Technology
Volume	30
Issue number	23
DOIs	https://doi.org/10.1109/JLT.2012.2222865
Publication status	Published - 1 Jan 2012

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10.1109/JLT.2012.2222865

Cite this

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title = "Curvature and Temperature Discrimination Using Multimode Interference Fiber Optic Structures-A Proof of Concept",

abstract = "Singlemode-multimode-singlemode fiber structures (SMS) based on distinct sections of a pure silica multimode fiber (coreless-MMF) with diameters of 125 and 55 mu m, were reported for the measurement of curvature and temperature. The sensing concept relies on the multimode interference that occurs in the coreless-MMF section and, in accordance with the length of the MMF section used, two fiber devices were developed: one based on a bandpass filter (self-image effect) and the other on a band-rejection filter. Maximum sensitivities of 64.7 nm.m and 13.08 pm/degrees C could be attained, for curvature and temperature, respectively, using the band-rejection filter with 55 mu m-MMF diameter. A proof of concept was also explored for the simultaneous measurement of curvature and temperature by means of the matrix method.",

keywords = "self-imaging, SMS fiber structure, temperature, multimode interference, simultaneous measurement, Curvature, optical fiber sensors",

author = "Malcata, {Francisco Xavier}",

year = "2012",

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doi = "10.1109/JLT.2012.2222865",

language = "Unknown",

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journal = "Journal of Lightwave Technology",

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TY - JOUR

T1 - Curvature and Temperature Discrimination Using Multimode Interference Fiber Optic Structures-A Proof of Concept

AU - Malcata, Francisco Xavier

PY - 2012/1/1

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N2 - Singlemode-multimode-singlemode fiber structures (SMS) based on distinct sections of a pure silica multimode fiber (coreless-MMF) with diameters of 125 and 55 mu m, were reported for the measurement of curvature and temperature. The sensing concept relies on the multimode interference that occurs in the coreless-MMF section and, in accordance with the length of the MMF section used, two fiber devices were developed: one based on a bandpass filter (self-image effect) and the other on a band-rejection filter. Maximum sensitivities of 64.7 nm.m and 13.08 pm/degrees C could be attained, for curvature and temperature, respectively, using the band-rejection filter with 55 mu m-MMF diameter. A proof of concept was also explored for the simultaneous measurement of curvature and temperature by means of the matrix method.

AB - Singlemode-multimode-singlemode fiber structures (SMS) based on distinct sections of a pure silica multimode fiber (coreless-MMF) with diameters of 125 and 55 mu m, were reported for the measurement of curvature and temperature. The sensing concept relies on the multimode interference that occurs in the coreless-MMF section and, in accordance with the length of the MMF section used, two fiber devices were developed: one based on a bandpass filter (self-image effect) and the other on a band-rejection filter. Maximum sensitivities of 64.7 nm.m and 13.08 pm/degrees C could be attained, for curvature and temperature, respectively, using the band-rejection filter with 55 mu m-MMF diameter. A proof of concept was also explored for the simultaneous measurement of curvature and temperature by means of the matrix method.

KW - self-imaging

KW - SMS fiber structure

KW - temperature

KW - multimode interference

KW - simultaneous measurement

KW - Curvature

KW - optical fiber sensors

U2 - 10.1109/JLT.2012.2222865

DO - 10.1109/JLT.2012.2222865

M3 - Article

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