Modal Interferometer Based on ARROW Fiber for Strain and Temperature Measurement

Author

Aref, S.H. ; Frazão, O. ; Caldas, P. ; Ferreira, L.A. ; Araújo, F.M. ; Santos, J.L. ; Latifi, H. ; Foy, P. ; Hawkins, T. ; Ballato, J. ; Her, T. ; Farahi, F.

Author_Institution

Inst. for Syst. & Comput. Eng. of Porto, Porto, Portugal

Volume

21

Issue

21

fYear

2009

Firstpage

1636

Lastpage

1638

Abstract

In this letter, interferometric sensors based on antiresonance reflecting optical waveguide (ARROW) fibers were developed, and used to sense strain and temperature. Two types of solid-core ARROW fibers were considered and signal demodulation was achieved by using the white light interferometric technique. The ARROW fibers have two rings of high index rods arranged in a hexagonal structure with a lattice constant of ap6 mum. The different sizes of the rods cause different measurand sensitivities for the two fibers. Resolutions of plusmn1.1 muepsiv and plusmn0.07degC were achieved for strain and temperature, respectively.

Keywords

light interferometers; optical fibres; strain measurement; temperature measurement; ARROW fiber; antiresonance reflecting optical waveguide; modal interferometer; strain measurement; temperature measurement; Antiresonance reflecting optical waveguide (measurand sensitivities); fiber sensors; white light interferometry;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2009.2028312

Filename

5184913