Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/74225
Type: Artigo de periódico
Title: Simultaneous measurement of refractive index and temperature using multimode interference inside a high birefringence fiber loop mirror
Author: Gouveia, C
Chesini, G
Cordeiro, CMB
Baptista, JM
Jorge, PAS
Abstract: A fiber optic sensor for simultaneous measurement of refractive index and temperature is presented. The sensing probe is realized by introducing a multimode interference device inside a high birefringence fiber loop mirror resulting in a configuration capable of refractive index and temperature discrimination. The multimode interference peak is sensitive to the surrounding refractive index (90 nm/RIU) and slightly responsive to the temperature (0.01 nm/ degrees C). On the other hand, the birefringent fiber loop mirror is highly sensitive to temperature (2.36 nm/ degrees C) and it has almost no response to refractive index. Using a power ratiometric peak detection scheme, a temperature independent refractive index measurement can be achieved with a resolution of +/- 2.25 x 10(-5) RIU. (c) 2012 Elsevier B.V. All rights reserved.
Subject: Fiber loop mirror
Multimode interference
Refractive index measurement
Temperature measurement
Refractive index and temperature discrimination
Multiparameter
Country: Suíça
Editor: Elsevier Science Sa
Rights: fechado
Identifier DOI: 10.1016/j.snb.2012.11.095
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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