Superposition of fiber Bragg and LPG gratings for embedded strain measurement | Zendy

Romain Guyard | Zendy; Dominique Leduc | Zendy; Yann Lecieux | Zendy; Cyril Lupi | Zendy

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Superposition of fiber Bragg and LPG gratings for embedded strain measurement

Author(s) -

Romain Guyard,

Dominique Leduc,

Yann Lecieux,

Cyril Lupi

Publication year - 2016

Publication title -

comptes rendus physique

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.984

H-Index - 73

eISSN - 1878-1535

pISSN - 1631-0705

DOI - 10.1016/j.crhy.2016.07.014

Subject(s) - fiber bragg grating , physics , superposition principle , optics , grating , optical fiber , quantum mechanics

When a fiber Bragg grating strain sensor is embedded inside a structure, the interaction of the sensor with the host material can lead to spurious results if the radial strain is neglected. In this article, we use numerical simulations to show that the axial and radial strains can be simultaneously measured with a single fiber in which a Bragg grating and a long-period grating are superimposed. Moreover, we present an optimal architecture of the sensor

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