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 language | English |
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Journal | IEEE Transactions on Instrumentation and Measurement |
Volume | 57 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2008 |
Keywords
- arrayed waveguide gratings
- bragg gratings
- calibration
- fibre optic sensors
- optical waveguides