@inproceedings{2d0e3515bf02413da2804346f64d8fb6,
title = "Adaptive dynamic FBG interrogation utilising erbium-doped fibre",
abstract = "A dynamic fibre Bragg grating interrogation scheme is investigated using two-wave mixing in erbium-doped fibre, capable of adapting to quasistatic strain and temperature drifts. An interference pattern set up in the erbium-doped fibre creates, due to the photorefractive effect, a dynamic grating capable of wavelength demodulating the FBG signal. The presence of a dynamic grating was verified and then dynamic strain signals from a fibre stretcher were measured. The adaptive nature of the technique was successfully demonstrated by heating the FBG while it underwent dynamic straining leading to detection unlike an alternative arrayed waveguide grating system which simultaneously failed detection. Two gratings were then wavelength division multiplexed with the signal grating receiving approximately 30dB greater signal showing that there was little cross talk in the system.",
keywords = "fibre Bragg grating, structural health monitoring, two wave mixing, erbium-doped fibre, dynamic strain, SENSORS",
author = "John, {Ryan N} and Ian Read and MacPherson, {William Neil}",
year = "2013",
doi = "10.1117/12.2009359",
language = "English",
volume = "8692",
series = "Proceedings of SPIE",
publisher = "SPIE",
editor = "Lynch, {Jerome P} and Chung-Bang Yun and Kon-Well Wang",
booktitle = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013",
address = "United States",
note = "Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems ; Conference date: 10-03-2013 Through 14-03-2013",
}