Nonlinearity compensation of the fiber Bragg grating interrogation system based on an arrayed waveguide grating

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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 mu strain or 15 degrees C to 4.8 mu strain or 0.6 degrees C, respectively, is experimentally demonstrated.
Original languageEnglish
Pages (from-to)2528-2531
Number of pages4
JournalIEEE Transactions on Instrumentation and Measurement
Volume57
Issue number11
Early online date23 May 2008
DOIs
Publication statusPublished - Nov 2008

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Keywords

  • arrayed waveguide grating
  • AWG
  • fiber Bragg grating
  • FBG
  • linearization
  • nonlinearity
  • sensors

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