Vector bending sensor based on an edge-core cladding-type fiber Bragg grating | Zendy

Fengyi Chen | Zendy; Xingyong Li | Zendy; Weijia Bao | Zendy; Ruohui Wang | Zendy; Xueguang Qiao | Zendy

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Vector bending sensor based on an edge-core cladding-type fiber Bragg grating

Author(s) -

Fengyi Chen,

Xingyong Li,

Weijia Bao,

Ruohui Wang,

Xueguang Qiao

Publication year - 2021

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.441761

Subject(s) - optics , fiber bragg grating , materials science , cladding (metalworking) , femtosecond , long period fiber grating , polarization maintaining optical fiber , fiber optic sensor , optical fiber , laser , physics , metallurgy

A two-dimensional vector bending sensor that is both compact and simple is proposed and demonstrated, based on an edge-core cladding-type fiber Bragg grating (ECLFBG) inscribed in an edge-core. The ECLFBG is written parallel to the edge-core using a femtosecond laser point-by-point technique. The reflection spectrum of this ECLFBG varies significantly depending on the magnitude and direction of the fiber's bend. Combining the trend and sensitivity of the wavelength shift and reflection intensity variations of the ECLFBG, the bending magnitude and direction can be measured simultaneously.

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