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An optimized strain-demodulation-method based on piezo-electrical transducer (PZT) driven fiber Fabry–Perot (FFP) filter is proposed and experimentally demonstrated. Using a parallel processing mode to drive the PZT continuously, the hysteresis effect is eliminated, and the system demodulation rate is increased. Furthermore, an AC–DC compensation method is developed to address the intrinsic nonlinear...
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