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Proceedings Paper

DFB fibre-laser sensor developments
Author(s): David J. Hill; Ben Hodder; J. De Freitas; Sean D. Thomas; Louise Hickey
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Paper Abstract

Distributed feedback (DFB) fibre-laser sensors have been shown to exhibit many characteristics useful in a range of sensing applications. Uniquely, fibre laser sensors enable the wavelength division multiplexing of a number of devices while maintaining the individual sensor characteristics of extremely high strain sensitivity, high dynamic range and very wide measurement bandwidth in small diameter sensors. These factors have led us to investigate a range of applications including hydrophone arrays, accelerometer designs, embedded acoustic emission sensors and acoustic pickups for musical instruments. This paper provides an overview of the optimised DFB sensor performance, interrogation and sensor configurations along with results and a discussion of the future developments of this technology.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624303
Show Author Affiliations
David J. Hill, QinetiQ Ltd. (United Kingdom)
Ben Hodder, QinetiQ Ltd. (United Kingdom)
J. De Freitas, QinetiQ Ltd. (United Kingdom)
Sean D. Thomas, QinetiQ Ltd. (United Kingdom)
Louise Hickey, Southampton Photonics Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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