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Proceedings Paper

Feedback controlled single wavelength interrogation technique for miniature all-silica EFPI fibre optic pressure sensors
Author(s): K. Bremer; E. Lewis; G. Leen; B. Moss; S. Lochmann; I. Mueller
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Paper Abstract

This paper proposes a novel technique to stabilise the output wavelength of a tuneable laser source to operate always in the linear range of a miniature all-silica Extrinsic Fabry-Perot Interferometric (EFPI) fibre optic pressure sensor. The technique is based on a fibre optic hybrid sensor, which consists of a miniature all-silica EFPI fibre optic pressure sensor with an incorporated in-Fibre Bragg Grating (FBG). The FBG temperature reference sensor is used as a feedback element to stabilise the output wavelength of a tuneable laser source. Therefore the novel interrogation technique allows high speed pressure measurements in high temperature environments.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76532D (8 September 2010); doi: 10.1117/12.866451
Show Author Affiliations
K. Bremer, Univ. of Limerick (Ireland)
E. Lewis, Univ. of Limerick (Ireland)
G. Leen, Univ. of Limerick (Ireland)
B. Moss, Univ. of Limerick (Ireland)
S. Lochmann, Hochschule Wismar (Germany)
I. Mueller, Hochschule Wismar (Germany)


Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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