"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

A polarization maintaining optical fiber Bragg grating multi-parameter sensor

YAGE ZHAN1, KAN GU1, JUN LUO1, HUA WU1,* , MUHUO YU1

Affiliation

  1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201602, P.R. China

Abstract

A polarization maintaining optical fiber Bragg grating (PMFBG) sensor with multi-parameter monitoring functions for composite structure has been studied theoretically and experimentally. A single embedded PMFBG is used as the sensor head for multi-parameter real-time monitoring in glass fiber reinforced polymer (GFRP) laminates. The temperature and stress response characteristics of the PMFBG in GFRP have been studied. The two peak wavelengths in the reflection spectrum of the PMFBG shift linearly with the temperature and/or stress of the laminates. Furthermore, the temperature sensitivity of the peak wavelengths of the PMFBG improve from 10.2m/℃ to 17.8pm/℃（x-axis） and from 9. 6 pm/℃ to 15.1 pm/℃（y-axis）after embedded in the composite laminates. The axial stress and temperature of the GFRP can be interrogated according to the two different wavelength shifts of the two peaks in the reflection spectrum. According to the experimental results, a single PMFBG sensor is competent for temperature and stress real-time monitoring simultaneously for composite structure..

Keywords

Optical fiber multi-parameter sensor, Polarization maintaining fiber Bragg grating (PMFBG), Temperature, Stress.

Submitted at: Oct. 14, 2011
Accepted at: Feb. 20, 2012

Citation

YAGE ZHAN, KAN GU, JUN LUO, HUA WU, MUHUO YU, A polarization maintaining optical fiber Bragg grating multi-parameter sensor, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 1-2, pp. 8-12 (2012)