Demodulation features of different types of signals for fiber-optic sensors

Yabin Zhang; Xintong Sun; Jianian Cao; Chao Zhang

doi:10.1117/12.869919

9 November 2010 Demodulation features of different types of signals for fiber-optic sensors

Yabin Zhang, Xintong Sun, Jianian Cao, Chao Zhang

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78530A (2010) https://doi.org/10.1117/12.869919
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

The detection abilities of PGC scheme dealing with the single frequency signal are investigated, based on which, the frequency domain of the signal is analyzed. Based on the Bessel function theoretic, the mathematical model has been established to analyze the performance of interferometric fiber-optic sensor under the PGC demodulation scheme. The spectrums of interferometer output signals are analyzed when the input signal is single frequency signal and multifrequency signal. Simulation results show that the dynamic domain upper limit of fiber-optic sensor when it operates with the multi-frequency signal must be much smaller than that it operates the single frequency signal.

Citation Download Citation

Yabin Zhang, Xintong Sun, Jianian Cao, and Chao Zhang "Demodulation features of different types of signals for fiber-optic sensors", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78530A (9 November 2010); https://doi.org/10.1117/12.869919

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