Open AccessFiber torsion sensor based on a twist taper in polarization-maintaining fiber
Author(s) -
Quan Zhou,
Weigang Zhang,
Lei Chen,
Tieyi Yan,
Liyu Zhang,
Li Wang,
Biao Wang
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.023877
Subject(s) - fusion splicing , torsion (gastropod) , optics , twist , materials science , polarization maintaining optical fiber , fiber optic sensor , optical fiber , graded index fiber , physics , medicine , geometry , surgery , mathematics
A novel optical fiber torsion sensor head is proposed. A section of polarization-maintaining fiber (PMF) is spliced between single mode fiber (SMF), and a twist taper is fabricated by a commercial electric-arc fusion splicer in the middle of the PMF. The asymmetric characteristics are obtained by the twist taper so that a fiber torsion sensor with directional discrimination is fabricated. Due to the characteristics of the asymmetric structure, the torsion sensitivity for the twist rate from 0 rad/m to -8 rad/m reaches 2.392 nm/rad·m-1, and for the twist rate from 0 rad/m to 8 rad/m reaches 1.071 nm/rad·m-1 respectively.