2023
DOI: 10.3390/s23208521
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Simultaneous Measurement of Microdisplacement and Temperature Based on Balloon-Shaped Structure

Yaxun Zhang,
Yuxin Liu,
Zhiliang Huang
et al.

Abstract: An optical fiber sensor for the simultaneous measurement of microdisplacement and temperature based on balloon-shaped single-mode fibers cascaded with a fiber Bragg grating with two core-offset joints is proposed. The interference between the core mode and cladding mode is caused by the stimulation of the cladding mode by the core-offset joints’ structure. The cladding of the core has a distinct refractive index, which causes optical path differences and interference. The balloon-shaped structure realizes mode… Show more

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