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Type: Journal article
Title: Interferometric high temperature sensor using suspended-core optical fibers
Author: Nguyen, L.
Warren-Smith, S.
Ebendorff-Heidepriem, H.
Monro, T.
Citation: Optics Express, 2016; 24(8):8967-8977
Publisher: The Optical Society
Issue Date: 2016
ISSN: 1094-4087
Statement of
Linh Viet Nguyen, Stephen C. Warren-Smith, Heike Ebendorff-Heidepriem, and Tanya M. Monro
Abstract: We propose and experimentally demonstrate, for the first time to our knowledge, high temperature fiber sensing using the multimode interference effect within a suspended-core microstructured optical fiber (SCF). Interference fringes were found to red-shift as the temperature increased and vice versa. Temperature sensing up to 1100°C was performed by measuring the wavelength shifts of the fringes after fast Fourier transform (FFT) filtering of the spectra. In addition, phase monitoring at the dominant spatial frequency in the Fourier spectrum was used as an interrogation method to monitor various temperature-change scenarios over a period of 80 hours. Our proposed high temperature fiber sensor is simple, cost-effective, and can operate at temperatures beyond 1000°C.
Rights: ©2016 Optical Society of America
DOI: 10.1364/OE.24.008967
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