Next Article in Journal
Design of a Multi-Sensor Cooperation Travel Environment Perception System for Autonomous Vehicle
Previous Article in Journal
Correction: Darwish, A. and Hassanien, A.E. Wearable and Implantable Wireless Sensor Network Solutions for Healthcare Monitoring. Sensors 2011, 11, 5561-5595
Article Menu

Export Article

Open AccessArticle
Sensors 2012, 12(9), 12377-12385; doi:10.3390/s120912377

Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers

1
Key Lab of Optical Fiber Sensing & Communications (Education Ministry of China), University of Electronic Science & Technology of China, Chengdu, Sichuan 611731, China
2
State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, Shaanxi 710119, China
*
Author to whom correspondence should be addressed.
Received: 30 July 2012 / Revised: 4 September 2012 / Accepted: 4 September 2012 / Published: 12 September 2012
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [773 KB, uploaded 21 June 2014]   |  

Abstract

Fiber-optic interferometric sensors based on graded-index multimode fibers have very high refractive-index sensitivity, as we previously demonstrated. In this paper, spatial-frequency multiplexing of this type of fiber-optic refractive index sensors is investigated. It is estimated that multiplexing of more than 10 such sensors is possible. In the multiplexing scheme, one of the sensors is used to investigate the refractive index and temperature responses. The fast Fourier transform (FFT) of the combined reflective spectra is analyzed. The intensity of the FFT spectra is linearly related with the refractive index and is not sensitive to the temperature. View Full-Text
Keywords: fiber-optic sensors; graded-index multimode fiber (GI-MMF); Fabry-Perot sensor; refractive index sensor; spatial frequency multiplexing fiber-optic sensors; graded-index multimode fiber (GI-MMF); Fabry-Perot sensor; refractive index sensor; spatial frequency multiplexing
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Liu, L.; Gong, Y.; Wu, Y.; Zhao, T.; Wu, H.-J.; Rao, Y.-J. Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers. Sensors 2012, 12, 12377-12385.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top