Open AccessDisplacement sensor based on Kerr induced phase-modulation of orthogonally polarized sinusoidal optical signals
Author(s) -
Curtis L. Baker,
Xiaoyi Bao
Publication year - 2014
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.22.009095
Subject(s) - optics , kerr effect , phase modulation , phase (matter) , cross phase modulation , physics , displacement (psychology) , self phase modulation , modulation (music) , materials science , nonlinear optics , phase noise , laser , acoustics , nonlinear system , psychology , quantum mechanics , psychotherapist
We present a novel short, medium, and long range displacement sensor using a Kerr phase-interrogator. Displacement induces relative phase variation between two orthogonally polarized sinusoidal optical signals. The Kerr phase-interrogator converts the phase variation into power variation through Kerr induced phase-modulation. Displacement sensing over a range of 12 mm with micron level resolution around the quadrature points is demonstrated.