Title :
Nonlinearity Compensation of the Fiber Bragg Grating Interrogation System Based on an Arrayed Waveguide Grating
Author :
Fusiek, Grzegorz ; Niewczas, Pawel ; Willshire, Andrew J. ; Mcdonald, James R
Author_Institution :
Inst. for Energy & Environ., Univ. of Strathclyde, Glasgow
Abstract :
In this paper, we report on nonlinearity compensation for a solid-state fiber bragg grating (FBG) sensor interrogation system based on an arrayed waveguide grating (AWG) device. A lookup table with calibration data is used to improve system linearity. A reduction in the absolute value of the measurement error from 120 mustrain or 15degC to 4.8 mustrain or 0.6degC, respectively, is experimentally demonstrated.
Keywords :
Bragg gratings; arrayed waveguide gratings; calibration; fibre optic sensors; measurement errors; optical waveguides; arrayed waveguide grating; calibration; fiber Bragg grating interrogation system; measurement error; nonlinearity compensation; solid-state fiber Bragg grating sensor; Arrayed waveguide grating (AWG); fiber Bragg grating (FBG); linearization; nonlinearity; sensors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2008.924899
