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Title: Liquid Hydrostatic Pressure Optical Sensor Based on Micro-Cavity Produced by the Catastrophic Fuse Effect
Author: Domingues, Maria de Fatima F.
Paixao, Tiago de Brito
Teixeira Mesquita, Esequiel Fernandes
Alberto, Nelia
Frias, Ana Rita
Ferreira, Rute A. S.
Varum, Humberto
da Costa Antunes, Paulo Fernando
de Brito Andre, Paulo Sergio
Keywords: FIBER
Issue Date: 2015
Abstract: We propose an optical fiber hydrostatic pressure sensor based on micro-cavities generated by the fiber fuse effect. The presented sensor is manufactured through the recycling of optical fiber destroyed by the fiber fuse effect, being, therefore, a cost-effective solution, when compared with other similar micro-cavity-based solutions. The developed sensor was characterized for pressures up to 20 kPa, showing a linear sensitivity coefficient of 0.47 +/- 0.03 nm . kPa(-1), for pressure values below 8 kPa. Furthermore, we propose a new theoretical model to describe the behavior of the microcavities embedded in optical fibers. This allows us to solve the discrepancies, already identified by other authors, between the experimental results and the ones attained with the flat mirrors Fabry-Perot model. By this way, we were able to describe the sensor response, within the full dynamic range.
Peer review: yes
DOI: 10.1109/JSEN.2015.2446534
ISSN: 1530-437X
Publisher Version: 10.1109/JSEN.2015.2446534
Appears in Collections:CICECO - Artigos

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