Four-layer D-shaped optical fiber surface plasmon resonance sensor for high-sensitivity strain measurement

Yu-Lung Lo, Chin Ho Chuang, Zheng Wei Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A four-layer D-shaped optical fiber surface plasmon resonance (SPR) for high-sensitivity polarimetric strain sensor is proposed. In contrast to existing SPR-based sensors, which are based on changes in the refractive index of the over-layer, the sensor proposed in this study is based on the change in the refractive index of the fiber core in response to the application of an axial load. Specifically, the phase difference between the P- and S-waves after passing through the sensor under SPR conditions is measured using a common-path heterodyne interferometer and is used to determine the corresponding change in the refractive index of the core. The experimental results show that the sensitivity of the proposed sensor is around 2.19×104 Deg./ε, i.e., degree/strain. By contrast, that of a conventional (non-SPR) polarimetric fiber sensor is just 5.2×102 Deg./ε.

Original languageEnglish
Title of host publicationThird Asia Pacific Optical Sensors Conference
DOIs
Publication statusPublished - 2012 Feb 20
Event3rd Asia Pacific Optical Sensors Conference - Sydney, NSW, Australia
Duration: 2012 Jan 312012 Feb 3

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8351
ISSN (Print)0277-786X

Other

Other3rd Asia Pacific Optical Sensors Conference
CountryAustralia
CitySydney, NSW
Period12-01-3112-02-03

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Lo, Y-L., Chuang, C. H., & Lin, Z. W. (2012). Four-layer D-shaped optical fiber surface plasmon resonance sensor for high-sensitivity strain measurement. In Third Asia Pacific Optical Sensors Conference [83512F] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8351). https://doi.org/10.1117/12.914227