Bend sensors with direction recognition based on long-period gratings written in D-shaped fibre

Zhao, Donghui, Chen, Xianfeng F., Zhou, Kaiming, Zhang, Lin, Bennion, Ian, MacPherson, William N., Barton, James S. and Jones, Julian D.C. (2004). Bend sensors with direction recognition based on long-period gratings written in D-shaped fibre. Applied optics, 43 (29), pp. 5425-5428.

Abstract

The curvature- or bend-sensing response of long-period gratings (LPGs) UV inscribed in D-shaped fiber has been investigated experimentally. Strong fiber-orientation dependence of the spectral response when such LPGs are subjected to bending at different directions has been observed and is shown to form the basis for a new class of single-device sensor with vector-sensing capability. Potential applications utilizing the linear response and unique bend-orientation characteristics of the devices are discussed.

Uncontrolled Keywords: curvature response, bend-sensing response, long-period gratings, LPGs, UV inscribed in D-shaped fiber, fiber-orientation dependence, spectral respons, single-device sensor, vector-sensing capability, linear response, unique bend-orientation
Published Date: 2004-10
Authors: Zhao, Donghui
Chen, Xianfeng F.
Zhou, Kaiming
Zhang, Lin
Bennion, Ian
MacPherson, William N.
Barton, James S.
Jones, Julian D.C.

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