Year: 2024
Type: conference-paper
Abstract: We study the application of a tubular-lattice hollow-core fiber displaying thin cladding tubes as a high-sensitivity and large-dynamic range curvature sensor. The device working principle is based on bending-induced core and cladding modes couplings occurring at specific wavelengths and at specific curvature radii. Our characterizations allowed us to determine a sensitivity of$(\mathbf{29.3} \pm \mathbf{0.4})\ \mathbf{nm}/\mathbf{m}^{-1}$for a curvature variation range of$\mathbf{17}\ \mathbf{m}^{-\mathbf{1}}$. These figures are high when compared with other curvature sensors based on different optical fiber-based sensing configurations. We understand that our work provides a valid path for achieving new hollow-core curvature sensors with enhanced sensitivity and large dynamic range.
Language: English
Topic: Advanced Fiber Optic Sensors
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4403621313