Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering

Demodulation System of the FBG Reflectance Spectrum Based on Optical Low Coherence Reflectometry

Authors
L.Y. Zhang, X.Y. Shen, J. Sun, J.C. Hu, Y. Han
Corresponding Author
L.Y. Zhang
Available Online July 2015.
DOI
10.2991/eame-15.2015.76How to use a DOI?
Keywords
FBG; OLCR; demodulation; Bragg wavelength; repeatability
Abstract

The key to the complex sensor detection(such as the non homogenous strain detection) of the fiber Bragg grating(FBG) is the demodulation of FBG reflectance spectrum. This paper designs the demodulation system which is based on the optical low coherence reflectometry(OLCR) princple. The system is mainly composed of the improved OLCR set-up and the LabVIEW demodulation program. The experimental results show that the demodulation system can effectively reduce the noise and amplify the interference signal, quickly demodulate the FBG reflectance spectrum and exactly find the Bragg wavelength after the zero padding and Gauss curve fitting, especially the repeatability can reach to 4pm.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
Series
Advances in Engineering Research
Publication Date
July 2015
ISBN
978-94-62520-71-4
ISSN
2352-5401
DOI
10.2991/eame-15.2015.76How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - L.Y. Zhang
AU  - X.Y. Shen
AU  - J. Sun
AU  - J.C. Hu
AU  - Y. Han
PY  - 2015/07
DA  - 2015/07
TI  - Demodulation System of the FBG Reflectance Spectrum Based on Optical Low Coherence Reflectometry
BT  - Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
PB  - Atlantis Press
SP  - 279
EP  - 282
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-15.2015.76
DO  - 10.2991/eame-15.2015.76
ID  - Zhang2015/07
ER  -