Spatially-multiplexed fibre-optic bragg grating strain and temperature sensor system based on interferometric wavelength-shift detection
Journal
Electronics Letters
Date Issued
June 8, 1995
DOI
10.1049/el:19950670
Abstract
A prototype fibre-optic system using interferometric wavelength-shift detection, capable of multiplexing up to 32 fibre-optic Bragg grating strain and temperature sensors with identical characteristics, has been demonstrated. THS system is based on a spatially multiplexed scheme for use with fibre-based low-coherence interferometric sensors, reported previously. Four fibre-optic Bragg grating channels using the same fibre grating have been demonstrated for measuring quasi-static strain and temperature.