SPR Microstructured D-Type Optical Fiber Sensor Configuration for Refractive Index Measurement

Author

Santos, Diego Felipe ; Guerreiro, Ariel ; Baptista, Jose Manuel

Author_Institution

Centro de Competencia de Cienc. Exatas e da Eng., Univ. da Madeira, Funchal, Portugal

Volume

15

Issue

10

fYear

2015

fDate

Oct. 2015

Firstpage

5472

Lastpage

5477

Abstract

This paper presents the performance analysis of a sensing configuration of refractive index, based on surface plasmon resonance (SPR) in microstructured D-type optical fiber with a thin gold layer, using the finite-element method. The configuration is analyzed in terms of the loss and distribution Poynting vector. The results are compared with a conventional SPR D-type optical fiber sensor for refractive index measurement. The simulation results show an improvement of the sensitivity and resolution (10 × 10³ nm/RIU and 9.8 × 10^-6 RIU, respectively, when considering an accurately spectral variation detection of 0.1 nm).

Keywords

fibre optic sensors; finite element analysis; gold; holey fibres; micro-optics; optical fibre losses; refractive index measurement; surface plasmon resonance; thin film sensors; Au; SPR microstructured D-type optical fiber sensor configuration; distribution Poynting vector; finite element method; loss; refractive index measurement; spectral variation detection; surface plasmon resonance; thin gold layer; Optical fiber sensors; Optical fibers; Refractive index; Sensitivity; Finite element method; finite element method; microstructured D-type fiber; optical fiber sensor; refractive index sensor; surface plasmon resonance;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2015.2442335

Filename

7118636