Title :
Curvature sensor based on long-period grating in dual concentric core fiber
Author :
Zhifang Wu ; Nan Zhang ; Ping Shum ; Xuguang Shao ; Hailiang Zhang ; Tianye Huang ; Humbert, Georges ; Auguste, Jean-Louis ; Gerome, Frederic ; Blondy, Jean-Marc ; Xuan Quyen Dinh
Author_Institution :
Centre for Opt. Fiber Technol., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We report on a curvature sensor based on a long-period grating in a dual-concentric-core fiber. By measuring the relative shifting of two adjacent resonant dips, the curvature sensitivity reaches 7.635 nm/m-1.
Keywords :
curvature measurement; diffraction gratings; fibre optic sensors; adjacent resonant dips relative shifting; curvature sensitivity; curvature sensor; dual concentric core fiber; long-period grating; Gratings; Optimized production technology; Refractive index; Sensitivity; Strain; Temperature measurement; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
