Low-cost miniature fiber-optic extrinsic fabry-perot interferometric pressure sensor for biomedical applications

Sven Poeggel, Daniele Tosi, Gabriel Leen, Elfed Lewis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)


A fiber-optic pressure sensor based in extrinsic Fabry-Perot interferometer (EFPI) is presented and discussed. The sensing probe is based on an inexpensive all-silica biocompatible design, with 0.2 mm outer diameter, suitable for disposable operation in medical catheters. A white-light interrogation system has been implemented, achieving a target accuracy of 1 mmHg and pressure stability of 1 mmHg/hour for long-term operation. A fiber Bragg grating (FBG) is added in proximity of the sensing tip, compensating temperature variations with 0.5°C accuracy. Design, simulation, and preliminary experimental validation are discussed.

Original languageEnglish
Title of host publicationAdvanced Microscopy Techniques III
Publication statusPublished - Sep 19 2013
Externally publishedYes
EventAdvanced Microscopy Techniques III - Munich, Germany
Duration: May 15 2013May 16 2013

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


OtherAdvanced Microscopy Techniques III


  • Extrinsic Fabry- Perot Interferometer (EFPI)
  • Fabry-Perot interferometry (FPI)
  • Fiber optic pressure sensor
  • Fiber optic sensor (FOS)
  • Medical pressure sensor
  • Pressure transducer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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