Implementation of vectorial bend sensors using long-period gratings UV-inscribed in special shape fibres

Zhao, D H and Zhou, K M and Chen, X F and Zhang, L and Bennion, I and Flockhart, G and MacPherson, W N and Barton, J S and Jones, J D C (2004) Implementation of vectorial bend sensors using long-period gratings UV-inscribed in special shape fibres. Measurement Science and Technology, 15 (8). pp. 1647-1650. ISSN 0957-0233 (https://doi.org/10.1088/0957-0233/15/8/037)

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Abstract

We report the implementation of vector bending sensors using long-period gratings (LPGs) UV-inscribed in flat-clad, four-core and D-shaped fibres. Our experiments reveal a strong fibre-orientation dependence of the spectral response when such LPGs are subjected to dynamic bending, which provided an opportunity to realize curvature measurement with direction recognition.

ORCID iDs

Zhao, D H, Zhou, K M, Chen, X F, Zhang, L, Bennion, I, Flockhart, G ORCID logoORCID: https://orcid.org/0000-0002-8777-7511, MacPherson, W N, Barton, J S and Jones, J D C;
CORE (COnnecting REpositories)