High sensitivity D-shaped optical fiber strain sensor based on surface plasmon resonance

被引：20

作者：

Ying, Yu ^{[1
]}

Wang, Jia-Kai ^{[1
]}

Xu, Ke ^{[1
]}

Si, Guang-Yuan ^{[2
]}

机构：

[1] Shenyang Jianzhu Univ, Coll Informat & Control Engn, Shenyang 110168, Peoples R China

[2] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110004, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2020年 / 460卷

基金：

中国国家自然科学基金;

关键词：

D-shaped optical fiber; Finite element method; Strain sensor; NANOPARTICLES;

D O I：

10.1016/j.optcom.2019.125147

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high sensitivity D-shaped optical fiber sensor was designed for strain sensing applications. The sensing properties of the structure were numerically simulated by the finite element method (FEM). The influence of the structural parameters on the sensing performance was investigated. The simulation results revealed that the optical fiber strain sensor displays optimal optical properties with an Au film thickness of 0.05 mu m and a distance of 0.5 mu m between the fiber core and flat surface. The maximum obtainable strain sensitivity was 2.42 x 10(-5) mu m/mu epsilon in the range of 0-1200 mu epsilon, and it revealed a maximum linearity of R-2 = 0.9964. The proposed D-shaped optical fiber has good sensing properties and potential application in strain sensing devices.

引用

页数：5

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