Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/57516
Type: Artigo de periódico
Title: Curvature and Temperature Discrimination Using Multimode Interference Fiber Optic Structures-A Proof of Concept
Author: Silva, S
Pachon, EGP
Franco, MAR
Jorge, P
Santos, JL
Malcata, FX
Cordeiro, CMB
Frazao, O
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.
Subject: Curvature
multimode interference
optical fiber sensors
SMS fiber structure
self-imaging
simultaneous measurement
temperature
Country: EUA
Editor: Ieee-inst Electrical Electronics Engineers Inc
Rights: aberto
Identifier DOI: 10.1109/JLT.2012.2222865
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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