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Proceedings Paper

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

Paper Details

Date Published: 20 November 2019
PDF: 13 pages
Proc. SPIE 11191, Advanced Sensor Systems and Applications IX, 111910H (20 November 2019); doi: 10.1117/12.2537316
Show Author Affiliations
Li-Ming Fang, Nanjing Univ. of Posts and Telecommunications (China)
He-Ming Chen, Nanjing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 11191:
Advanced Sensor Systems and Applications IX
Tiegen Liu; Gang-Ding Peng; Zuyuan He, Editor(s)

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