WANG Chao, DONG Xin-yong, CHEN De-bao, et al. Research on liquid level sensor based on optical core-offset fusion splicing method along fast-axis of PMF[J]. 2016, 35(4): 42-44+48.
WANG Chao, DONG Xin-yong, CHEN De-bao, et al. Research on liquid level sensor based on optical core-offset fusion splicing method along fast-axis of PMF[J]. 2016, 35(4): 42-44+48. DOI: 10.13873/J.1000-9787(2016)04-0042-03.
A embedded Mach-Zehnder interference( MZI) type liquid level sensor based on polarization maintaining fiber( PMF) core-offset fusion splicing along fast-axis is proposed
core-offset orientation and length of PMF are researched and discussed respectively
optical path difference of MZI is influenced by length of PMF immerged in liquid and length of PMF in air. Wavelength shifts and intensity attenuation sensitivity are-495. 6 pm / mm and0. 22 d B / mm
respectively
corresponding to sensor obtained by liquid level experimental result.
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references
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Liquid sensors using refractive intensity at the end-face of a glass fiber connected to fiber-Bragg grating [J] . Kyung Rak Sohn. Sensors & Actuators: A. Physical . 2010 (2)