5 October 2009 Optical load sensors utilizing fiber-Bragg-grating based Fabry-Perot resonators
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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 750354 (2009); doi: 10.1117/12.834251
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom
Abstract
We report novel optical load sensors utilizing fiber Bragg grating based Fabry-Perot (FBG-FP) structures. Each transmission peak of a FBG-FP is observed to split into two peaks due to the birefringence effect caused by the transversal loading. Transversal loading can be measured through the wavelength separation of the peak split, which shows a good linear relationship. We also demonstrate a load sensing scheme based on the measurement of the beating frequency of a dualwavelength laser employing a FBG-FP. Such a scheme also provides a new way to generate microwave signals.
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Xuewen Shu, Kate Sugden, Ian Bennion, "Optical load sensors utilizing fiber-Bragg-grating based Fabry-Perot resonators", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750354 (5 October 2009); doi: 10.1117/12.834251; https://doi.org/10.1117/12.834251
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KEYWORDS
Fiber Bragg gratings

Sensors

Polarization

Fiber optics sensors

Fabry–Perot interferometers

Birefringence

Optical fibers

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