In-situ measurements with fibre Bragg gratings embedded in stainless steel

Dirk Havermann; Jinesh Mathew; William N. MacPherson; Robert R. J. Maier; Duncan P. Hand

doi:10.1117/12.2059587

2 June 2014 In-situ measurements with fibre Bragg gratings embedded in stainless steel

Dirk Havermann, Jinesh Mathew, William N. MacPherson, Robert R. J. Maier, Duncan P. Hand

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157A1 (2014) https://doi.org/10.1117/12.2059587
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

Dirk Havermann, Jinesh Mathew, William N. MacPherson, Robert R. J. Maier, and Duncan P. Hand "In-situ measurements with fibre Bragg gratings embedded in stainless steel", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A1 (2 June 2014); https://doi.org/10.1117/12.2059587

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