Share Email Print
cover

Optical Engineering

Polarization-maintaining fiber sensor for simultaneous measurement of the temperature and refractive index
Author(s): Rui-an Zhao; Tingting Lang; Jun Chen; Jie Hu
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper Abstract

A polarization-maintaining fiber (PMF) sensor for simultaneous measurement of the temperature and refractive index (RI) based on the Mach–Zehnder interferometer is proposed and demonstrated experimentally. This fiber sensor is constructed by sandwiching a 20-mm waist-enlarged PMF between two single-mode fibers (SMFs). Using the wavelength shifts of different interference dips and the sensitivity matrix, two external parameters can be measured simultaneously. Experiment results show that the sensitivities to the temperature are 145.6    pm / ° C and 0.1256    nm / ° C and the sensitivities to the RI are 35.0502 and 23.3694    nm / RIU for two interference dips, respectively. This fiber sensor is simple and easy to fabricate, has high sensitivity, and can be applied to other fields, such as biological and chemical sensings.

Paper Details

Date Published: 25 May 2017
PDF: 5 pages
Opt. Eng. 56(5) 057113 doi: 10.1117/1.OE.56.5.057113
Published in: Optical Engineering Volume 56, Issue 5
Show Author Affiliations
Rui-an Zhao, China Jiliang Univ. (China)
Tingting Lang, China Jiliang Univ. (China)
Jun Chen, China Jiliang Univ. (China)
Jie Hu, China Jiliang Univ. (China)


© SPIE. Terms of Use
Back to Top