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Application of Hilbert transforms to high resolution strain and temperature characterisation of fibre Bragg grating sensors

Flockhart, GMH and McBride, R and MacPherson, WN and Jones, JDC and Chisholm, KE and Zhang, L and Bennion, I and Read, I and Foote, P (2000) Application of Hilbert transforms to high resolution strain and temperature characterisation of fibre Bragg grating sensors. In: 14th International Conference on Optical Fiber Sensors. Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE) . SPIE, Bellingham, pp. 25-28. ISBN 0819438480

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Abstract

We report measurements of the strain and temperature coefficients of optical fibre Bragg gratings with similar to 1pm wavelength resolution using Fourier transform spectroscopy and Hilbert transform signal processing.