Quadratic behavior of fiber Bragg grating temperature coefficients

Gordon M.H. Flockhart; Robert R.J. Maier; James S. Barton; William N. MacPherson; Julian D.C. Jones; Karen E. Chisholm; Lin Zhang; Ian Bennion; Ian J. Read; Peter D. Foote

doi:10.1364/AO.43.002744

Quadratic behavior of fiber Bragg grating temperature coefficients

Gordon M.H. Flockhart, Robert R.J. Maier, James S. Barton, William N. MacPherson, Julian D.C. Jones, Karen E. Chisholm, Lin Zhang, Ian Bennion, Ian J. Read, Peter D. Foote

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature response was found to be nonlinear over the temperature range -70 °C to 80 °C. The nonlinearity was observed to be a quadratic function of temperature, arising from the linear dependence on temperature of the thermo-optic coefficient of silica glass over this range, and is in good agreement with a theoretical model.

Original language	English
Pages (from-to)	2744-2751
Number of pages	8
Journal	Applied Optics
Volume	43
Issue number	13
DOIs	https://doi.org/10.1364/AO.43.002744
Publication status	Published - 1 May 2004

Bibliographical note

© 2004 Optical Society of America
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-13-2744. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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10.1364/AO.43.002744

Quadratic behaviour of fibre Bragg grating temperature coefficients
© 2004 Optical Society of America This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-13-2744. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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title = "Quadratic behavior of fiber Bragg grating temperature coefficients",

abstract = "We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature response was found to be nonlinear over the temperature range -70 °C to 80 °C. The nonlinearity was observed to be a quadratic function of temperature, arising from the linear dependence on temperature of the thermo-optic coefficient of silica glass over this range, and is in good agreement with a theoretical model. ",

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AU - Flockhart, Gordon M.H.

AU - Maier, Robert R.J.

AU - Barton, James S.

AU - MacPherson, William N.

AU - Jones, Julian D.C.

AU - Chisholm, Karen E.

AU - Zhang, Lin

AU - Bennion, Ian

AU - Read, Ian J.

AU - Foote, Peter D.

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Quadratic behavior of fiber Bragg grating temperature coefficients

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