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Double fiber Bragg gratings liquid level sensor based on push-pull self-demodulation scheme
Author(s): Jinmeng Yan; Menghong Tan; Weiwei Song; Jiangtao Tian; Ailing Zhang
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Paper 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.

Paper Details

Date Published: 14 February 2019
PDF: 6 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484M (14 February 2019); doi: 10.1117/12.2522901
Show Author Affiliations
Jinmeng Yan, Tianjin Univ. of Technology (China)
Menghong Tan, Tianjin Univ. of Technology (China)
Weiwei Song, Tianjin Univ. of Technology (China)
Jiangtao Tian, Tianjin Univ. of Technology (China)
Ailing Zhang, Tianjin Univ. of Technology (China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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