Fibre Bragg grating interrogation based on high‐birefringence fibre loop mirror for strain temperature discrimination

Abstract

Abstract In this work, we present a fiber Bragg grating interrogation based on high‐birefringence fiber loop mirror for strain–temperature discrimination. Due to spectral response of the optical filters it is possible to determine the variation of the wavelength and the optical power of the Bragg grating sensor when subject to strain or temperature. Maximum errors of ±0.4°C and ±12 με are reported over 80°C and 2000 με measurement ranges. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2326–2328, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21894