Fabrication and characterization of an optical fiber probe for esophageal pressure measurements

A. Romolini; Riccardo Falciai; Alessandro Schena

doi:10.1117/12.259951

26 November 1996 Fabrication and characterization of an optical fiber probe for esophageal pressure measurements

A. Romolini, Riccardo Falciai, Alessandro Schena

Proceedings Volume 2928, Biomedical Systems and Technologies; (1996) https://doi.org/10.1117/12.259951
Event: BiOS Europe '96, 1996, Vienna, Austria

Abstract

A miniaturized optical fiber probe for measuring the esophageal pressure, making use of biconically tapered fibers, has been built and characterized. The operation of the probe is based on the decrease of the transmitted power from a biconical fiber when it is bent, in its biconical part, under the action of pressure. The necessary sensitivity is about 1 divided by 2 mm Hg in the range between 0 and 50 mm Hg. To obtain it we have fabricated and tested some probes using different fibers (four-mode, two- mode and monomode) and different values of tapering. Our best result has been achieved with a probe made with a monomode fiber of waist 36 micrometer whose sensitivity is 2 mm Hg in the range between 5 and 55 mm Hg.

Citation Download Citation

A. Romolini, Riccardo Falciai, and Alessandro Schena "Fabrication and characterization of an optical fiber probe for esophageal pressure measurements", Proc. SPIE 2928, Biomedical Systems and Technologies, (26 November 1996); https://doi.org/10.1117/12.259951

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