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Type: Artigo
Title: Multimode exposed core fiber specklegram sensor
Author: Cabral, Thiago D.
Fujiwara, Eric
Warren-Smith, Stephen C.
Ebendorff-Heidepriem, Heike
Cordeiro, Cristiano M. B.
Abstract: The inception of photonic crystal fibers (PCFs) allowed for unprecedented tailoring of waveguide properties for specialty sensing probes. Exposed core microstructured fibers (ECFs) represent a natural evolution of the PCF design for practical liquid and gas sensing. Until now, to the best of our knowledge, only single-mode or few-modes ECFs have been explored. In this Letter, we demonstrate a highly multimode ECF with a lateral access that extends throughout the whole length of the fiber. The ECF is operated as a fiber specklegram sensor for assessing properties of fluids and interrogated using a simple and low-cost setup. The probe exhibits a refractive index resolution and sensitivity of at least 4.6×10−4 refractive index units (RIUs) and −10.97RIU−1, respectively. A maximum temperature resolution up to 0.017°C with a −0.20∘C−1 temperature sensitivity over the 23°C–28°C range and a liquid level sensing resolution up to 0.12 mm with −0.015mm−1 sensitivity over the 0.0–50.0 mm bathed the length range in water
Subject: Estruturas com fibra ótica
Country: Estados Unidos
Editor: Optical Society of America
Rights: Fechado
Identifier DOI: 10.1364/OL.391812
Date Issue: 2020
Appears in Collections:IFGW - Artigos e Outros Documentos
FEM - Artigos e Outros Documentos

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