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Proceedings Paper

Pressure sensing with optical fiber-tip air bubbles
Author(s): Wenbing Yu; Cailing Fu; D. N. Wang; Ying Wang
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Paper Abstract

Optical fiber-tip air bubbles are demonstrated for pressure sensing with ultrahigh sensitivity. The air bubble locates in the end facet of a single mode fiber (SMF) that spliced with a silica tube, which is naturally formed and acts as a compressible Fabry-Pérot interferometer (FPI) cavity when immersing the silica tube into liquid. The proposed device exhibits pressure sensitivity of <1000 nm/kPa. This kind of compressible FPI cavity may find potential applications in highly sensitive pressure and/or acoustic sensing.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892430 (15 October 2013); doi: 10.1117/12.2039901
Show Author Affiliations
Wenbing Yu, Wuhan Institute of Technology (China)
Cailing Fu, Wuhan Institute of Technology (China)
D. N. Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Ying Wang, Wuhan Institute of Technology (China)
The Hong Kong Polytechnic Univ. (Hong Kong, China)

Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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