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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 C.M.B.
Baptista J.M.
Jorge P.A.S.
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/°C). On the other hand, the birefringent fiber loop mirror is highly sensitive to temperature (2.36 nm/°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 × 10-5 RIU. © 2012 Elsevier B.V.
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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