Research on wavelength demodulation method based on optical fiber Fabry-Perot tunable filter

Wanshan Zhu; Junfeng Jiang; Jin Wang; Tiegen Liu

doi:10.1117/12.2500618

23 October 2018 Research on wavelength demodulation method based on optical fiber Fabry-Perot tunable filter

Wanshan Zhu, Junfeng Jiang, Jin Wang, Tiegen Liu

Proceedings Volume 10821, Advanced Sensor Systems and Applications VIII; 1082106 (2018) https://doi.org/10.1117/12.2500618
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

This paper analyses several wavelength demodulation methods based on optical fiber Fabry-Perot tunable filter. In view of the shortcomings of these methods, we proposed a real-time data acquisition method and a simple and effective demodulation algorithm based on optical fiber Fabry-Perot tunable filter and set up a temperature sensing system. The sensing system consists of an FBG sensor part, a data acquisition part, a data demodulation part and a data display part, we introduce the operation of the data acquisition part by explaining how the hardware and software work. Then we introduce the method of data demodulation we proposed, and demonstrated the steps of data demodulation in detail. We test the performance of this data acquisition part by carrying out a temperature sensor experiment, and prove the effectiveness of the demodulation algorithm at the same time. In addition, most programming languages can implement this simple and effective algorithm.

Citation Download Citation

Wanshan Zhu, Junfeng Jiang, Jin Wang, and Tiegen Liu "Research on wavelength demodulation method based on optical fiber Fabry-Perot tunable filter", Proc. SPIE 10821, Advanced Sensor Systems and Applications VIII, 1082106 (23 October 2018); https://doi.org/10.1117/12.2500618

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