Nonlinearity compensation of the fibre 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 mustrain or 15degC to 4.8 mustrain or 0.6degC, respectively, is experimentally demonstrated.
Original languageEnglish
JournalIEEE Transactions on Instrumentation and Measurement
Volume57
Issue number11
DOIs
Publication statusPublished - 2008

Keywords

  • arrayed waveguide gratings
  • bragg gratings
  • calibration
  • fibre optic sensors
  • optical waveguides

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