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Proceedings Paper

A cost-effective edge-filter-based FBG strain interrogator using catastrophic fuse effect microcavity interferometers
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Paper Abstract

This paper presents a simple, compact, stable and inexpensive in-line solution based on catastrophic fuse effect micro-cavity interferometers for edge-filter strain interrogation of a fiber Bragg grating sensor. By using a commercial spliced machine and recycling damage fiber for the catastrophic fuse effect it is possible to construct a micro-cavity with high contrast of more than 20dB, and acceptable half free spectra range (FSR) around 13nm of interrogation range. The strain from 0 to 1440μStrain of the FBG sensor is measured with evidences of high repeatability and stability. Future work will investigate the use of the proposed method for applications requiring higher interrogation rates.

Paper Details

Date Published: 22 February 2018
PDF: 4 pages
Proc. SPIE 10528, Optical Components and Materials XV, 105281W (22 February 2018); doi: 10.1117/12.2291042
Show Author Affiliations
Camilo A. R. Díaz, Federal Univ. of Espírito Santo (Brazil)
Carlos A. F. Marques, Univ. de Santiago (Portugal)
M. Fátima F. Domingues, Univ. de Santiago (Portugal)
Moisés R. N. Ribeiro, Federal Univ. of Espírito Santo (Brazil)
Anselmo Frizera Neto, Federal Univ. of Espírito Santo (Brazil)
Maria J. Pontes, Federal Univ. of Espírito Santo (Brazil)
Paulo S. André, Technical Univ. of Lisbon (Portugal)
Paulo F. C. Antunes, Univ. de Aveiro (Portugal)

Published in SPIE Proceedings Vol. 10528:
Optical Components and Materials XV
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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