8 September 2010 Feedback controlled single wavelength interrogation technique for miniature all-silica EFPI fibre optic pressure sensors
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Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76532D (2010) https://doi.org/10.1117/12.866451
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal
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.
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K. Bremer, K. Bremer, E. Lewis, E. Lewis, G. Leen, G. Leen, B. Moss, B. Moss, S. Lochmann, S. Lochmann, I. Mueller, I. Mueller, } "Feedback controlled single wavelength interrogation technique for miniature all-silica EFPI fibre optic pressure sensors", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76532D (8 September 2010); doi: 10.1117/12.866451; https://doi.org/10.1117/12.866451
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