Nonlinear response in polymer optical fibre Bragg grating based sensors


PMMA based polymer optical fibre Bragg gratings have been used for humidity, temperature and concentration sensing. Due to the water affinity of PMMA, the characteristic wavelength of the grating is largely modulated by the water content in the fibre. The rate of water transportation between fibre and surrounding depends on the permeability coefficient for PMMA, which is a function of surrounding temperature and humidity. This leads to increased water content with increasing humidity and temperature. Consequently the wavelength of the grating shows a nonlinear change over varying humidity and temperature. This nonlinearity needs to be calibrated prior to sensor application.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: W. Zhang ; D. J. Webb and G.-D. Peng, "Nonlinear response in polymer optical fibre Bragg grating based sensors", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214N (October 17, 2012). Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Event Title: 22nd international conference on Optical Fiber Sensors
Event Type: Other
Event Dates: 2012-10-14 - 2012-10-19
Uncontrolled Keywords: Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
ISBN: 978-0-8194-9103-9
Last Modified: 28 Jun 2024 08:50
Date Deposited: 15 Jan 2013 08:30
Full Text Link: http://proceedi ... ticleid=1381431
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Conference contribution
Published Date: 2012-10-04
Authors: Zhang, Wei (ORCID Profile 0000-0002-3584-8541)
Webb, David J. (ORCID Profile 0000-0002-5495-1296)
Peng, Gang-Ding



Version: Accepted Version

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