Pressure sensing with optical fiber-tip air bubbles

Wenbing Yu; Cailing Fu; D. N. Wang; Ying Wang

doi:10.1117/12.2039901

15 October 2013 Pressure sensing with optical fiber-tip air bubbles

Wenbing Yu, Cailing Fu, D. N. Wang, Ying Wang

Author Affiliations +

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892430 (2013) https://doi.org/10.1117/12.2039901
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

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.

Citation Download Citation

Wenbing Yu, Wenbing Yu, Cailing Fu, Cailing Fu, D. N. Wang, D. N. Wang, Ying Wang, Ying Wang, "Pressure sensing with optical fiber-tip air bubbles", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892430 (15 October 2013); doi: 10.1117/12.2039901; https://doi.org/10.1117/12.2039901

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