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Proceedings Paper

In-situ measurements with fibre Bragg gratings embedded in stainless steel
Author(s): Dirk Havermann; Jinesh Mathew; William N. MacPherson; Robert R. J. Maier; Duncan P. Hand
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Paper Abstract

Metal clad single mode optical fibres containing high reflectivity Bragg gratings are successfully embedded into stainless steel components using bespoke laser based additive manufacturing technology. Temperature cycling of the embedded sensor demonstrates the ability of gratings to survive the embedding process, and act as temperature or strain sensors. At extreme temperatures up to 500 °C, discontinuities in the gratings response are observed and these have been attributed to possible delamination issues at the interface between glass fiber and the surrounding metal.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A1 (2 June 2014); doi: 10.1117/12.2059587
Show Author Affiliations
Dirk Havermann, Heriot-Watt Univ. (United Kingdom)
Jinesh Mathew, Heriot-Watt Univ. (United Kingdom)
William N. MacPherson, Heriot-Watt Univ. (United Kingdom)
Robert R. J. Maier, Heriot-Watt Univ. (United Kingdom)
Duncan P. Hand, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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