Open AccessExperimental demonstration of multi-parameter sensing based on polarized interference of polarization-maintaining few-mode fibers
Author(s) -
Jian Zhao,
Jinsheng Xu,
Chongxi Wang,
Yaping Liu,
Zhiqun Yang
Publication year - 2020
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.396019
Subject(s) - optics , polarization (electrochemistry) , interference (communication) , sensitivity (control systems) , transverse plane , wavelength , transverse mode , materials science , polarization mode dispersion , physics , optical fiber , optoelectronics , telecommunications , electronic engineering , laser , channel (broadcasting) , chemistry , structural engineering , computer science , engineering
Polarization-maintaining few-mode fibers (PM-FMFs) have found applications in sensors with attractive features that traditional single-mode fibers do not possess. We propose a measurement method for multi-parameter sensing based on PM-FMFs. This method is mainly based on the polarized interference effect of PM-FMF. We experimentally demonstrate the principle of the simultaneous sensing of temperature, strain and transverse force. The sensor has been verified by three groups of multi-parameter measurement experiments showing that the changes of multi-parameter derived from the wavelength shift of the polarized interference spectrum are consistent with the multi-parameter changes set in the experiments. The proposed PM-FMF based sensor has a temperature sensitivity of 0.3 nm/°C, a strain sensitivity of 0.01 nm/µε and a transverse force sensitivity of 0.0065 nm/(N/m).