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Proceedings Paper

Miniature low-cost extrinsic Fabry-Perot interferometer for low-pressure detection
Author(s): Sven Poeggel; Daniele Tosi; Gabriel Leen; Elfed Lewis
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Paper Abstract

A miniature optical fiber pressure sensor based on extrinsic Fabry-Perot interferometer (EFPI) is presented. The sensing probe has 0.2 mm outer diameter, and is based on an all-silica biocompatible structure, with a pressure sensitivity <1 nm/kPa. The probe is complemented by a fiber Bragg grating (FBG), in proximity of the EFPI tip, for temperature compensation. Interrogation is based on a low-cost white-light setup, whereas several pressure detection algorithms have been developed. Preliminary experimental validation and medical applications are discussed.

Paper Details

Date Published: 13 May 2013
PDF: 9 pages
Proc. SPIE 8788, Optical Measurement Systems for Industrial Inspection VIII, 878811 (13 May 2013); doi: 10.1117/12.2019799
Show Author Affiliations
Sven Poeggel, Univ. of Limerick (Ireland)
Daniele Tosi, Univ. of Limerick (Ireland)
Gabriel Leen, Univ. of Limerick (Ireland)
Elfed Lewis, Univ. of Limerick (Ireland)

Published in SPIE Proceedings Vol. 8788:
Optical Measurement Systems for Industrial Inspection VIII
Peter H. Lehmann; Wolfgang Osten; Armando Albertazzi, Editor(s)

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