Double-core D-type photonic crystal fiber refractive index sensor based on grid coating

Li-Ming Fang; He-Ming Chen

doi:10.1117/12.2537316

20 November 2019 Double-core D-type photonic crystal fiber refractive index sensor based on grid coating

Li-Ming Fang, He-Ming Chen

Proceedings Volume 11191, Advanced Sensor Systems and Applications IX; 111910H (2019) https://doi.org/10.1117/12.2537316
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

A D-type fiber optic refractive index sensor based on surface plasmon resonance (SPR) principle is proposed in this paper. The sensor is composed of a double core structure and a grid-coated photonic crystal fiber (PCF) on the polishing surface. The resonant wavelength can be adjusted and the refractive index sensitivity can be improved by introducing a gold grating film. Under the anisotropic perfect matching layer boundary condition, the simulation was preformed through the full-vector finite element method (FEM). The results show that the refractive index measurement range of the sensor is 1.30~1.33, the sensitivity can reach 12000 nm• RIU^-1, and the resolution can reach 1.01×10^-5 RIU.

Citation Download Citation

Li-Ming Fang and He-Ming Chen "Double-core D-type photonic crystal fiber refractive index sensor based on grid coating", Proc. SPIE 11191, Advanced Sensor Systems and Applications IX, 111910H (20 November 2019); https://doi.org/10.1117/12.2537316

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