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.
|Number of pages||4|
|Journal||IEEE Transactions on Instrumentation and Measurement|
|Early online date||23 May 2008|
|Publication status||Published - Nov 2008|
- arrayed waveguide grating
- fiber Bragg grating