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Type: Artigo de evento
Title: Simultaneous Measurement Of Refractive Index And Temperature Based On Multimode Interference Inside A Fiber Loop Mirror
Author: Gouveia C.
Chesinic G.
Baptista J.M.
Cordeiro C.M.B.
Jorge P.A.S.
Abstract: A fiber optic sensor for simultaneous measurement of refractive index and temperature is presented. The sensing probe is achieved by introducing multimode interference 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 (0.005 nm°C). On the other hand, the birrefringent fiber loop mirror is highly sensitive to temperature (2.39 nm°C) and has no response to refractive index. Therefore, a temperature independent refractive index measurement can be made with a resolution of ±2.5x10-5. © 2012 SPIE.
Rights: aberto
Identifier DOI: 10.1117/12.975281
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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