Bend sensors with direction recognition based on long-period gratings written in D-shaped fiber
作者： Kaiming Zhou , Lin Zhang , Ian Bennion , William N. MacPherson , James S. Barton
DOI: 10.1364/AO.43.005425
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摘要: 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 the spectral when such LPGs are subjected to bending at different directions observed and is shown form basis for a new class single-device sensor with vector-sensing capability. Potential applications utilizing linear unique bend-orientation characteristics devices discussed.
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