Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2028312
