Open AccessFiber self-mixing interferometer with orthogonally polarized light compensation
Author(s) -
Shaohui Zhang,
Shulian Zhang,
Liqun Sun,
Yidong Tan
Publication year - 2016
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.24.026558
Subject(s) - optics , interferometry , polarization (electrochemistry) , polarization maintaining optical fiber , metrology , sensitivity (control systems) , heterodyne detection , optical fiber , laser , optical path , compensation (psychology) , fiber laser , physics , materials science , fiber optic sensor , chemistry , psychology , electronic engineering , psychoanalysis , engineering
A fiber heterodyne self-mixing interferometer with orthogonally polarized light compensation is achieved. This system can adapt to various complex scenes while still keeping ultra-high sensitivity and anti-disturbance capability. Ultra-high sensitivity microchip laser is used as the laser source and polarization maintaining(PM) fiber makes the light path easy to accommodate to complex spaces, such as remote or narrow and small space. Besides, orthogonally polarized light inside PM fiber can eliminate the measurement error on account of environment disturbance. At present, the displacement resolution could be less than 10nm, which shows a great potential in nano-metrology.