Double fiber Bragg gratings liquid level sensor based on push-pull self-demodulation scheme

Jinmeng Yan; Menghong Tan; Weiwei Song; Jiangtao Tian; Ailing Zhang

doi:10.1117/12.2522901

14 February 2019 Double fiber Bragg gratings liquid level sensor based on push-pull self-demodulation scheme

Jinmeng Yan, Menghong Tan, Weiwei Song, Jiangtao Tian, Ailing Zhang

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110484M (2019) https://doi.org/10.1117/12.2522901
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

In this paper, we propose a push-pull type double fiber Bragg gratings liquid level sensor. It consists with two-matched fiber Bragg gratings and converts the shift of optical wavelength into output power according to the matching relationship between transmission spectrum and reflection spectrum of gratings. The output power of the optical sensor is linearly changed with liquid level by utilizing the push-pull structure. The liquid level sensor achieves self-demodulation, which greatly simplifies the sensing structure.

Citation Download Citation

Jinmeng Yan, Menghong Tan, Weiwei Song, Jiangtao Tian, and Ailing Zhang "Double fiber Bragg gratings liquid level sensor based on push-pull self-demodulation scheme", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484M (14 February 2019); https://doi.org/10.1117/12.2522901

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