Publication detail

FIBER-OPTIC DISPLACEMENT SENSOR BASED ON FABRY-PÉROT INTERFEROMETER

SKALSKÝ, M.

Original Title

FIBER-OPTIC DISPLACEMENT SENSOR BASED ON FABRY-PÉROT INTERFEROMETER

English Title

FIBER-OPTIC DISPLACEMENT SENSOR BASED ON FABRY-PÉROT INTERFEROMETER

Type

conference paper

Language

en

Original Abstract

This paper describes a simple and inexpensive fiber-optic sensor for dynamic displacement measurement with sub-nanometer resolution. The principle is based on creating a resonator cavity between measured surface and a single-mode fiber, working as a Fabry-Pérot interferometer. The fundamental principles like diffraction, spatial filtration or the role of reflectivity are analyzed theoretically and their effect on the sensitivity is explained. The sensor is then tested experimentally with an uncoated fiber tip and a gold mirror. Based on the spectral analysis, the effect of working distance on interference visibility is explained.

English abstract

This paper describes a simple and inexpensive fiber-optic sensor for dynamic displacement measurement with sub-nanometer resolution. The principle is based on creating a resonator cavity between measured surface and a single-mode fiber, working as a Fabry-Pérot interferometer. The fundamental principles like diffraction, spatial filtration or the role of reflectivity are analyzed theoretically and their effect on the sensitivity is explained. The sensor is then tested experimentally with an uncoated fiber tip and a gold mirror. Based on the spectral analysis, the effect of working distance on interference visibility is explained.

Keywords

Fiber-optic sensors, Fabry-Pérot interferometer, interferometric measurement, vibration sensing, acoustic emission.

Released

24.04.2018

ISBN

978-80-214-5614-3

Book

Proceedings of the 24th Conference STUDENT EEICT 2018

Pages from

378

Pages to

382

Pages count

5

URL

Documents

BibTex


@inproceedings{BUT147162,
  author="Michal {Skalský}",
  title="FIBER-OPTIC DISPLACEMENT SENSOR BASED ON FABRY-PÉROT INTERFEROMETER",
  annote="This paper describes a simple and inexpensive fiber-optic sensor for dynamic displacement
measurement with sub-nanometer resolution. The principle is based on creating a resonator cavity
between measured surface and a single-mode fiber, working as a Fabry-Pérot interferometer. The
fundamental principles like diffraction, spatial filtration or the role of reflectivity are analyzed theoretically and their effect on the sensitivity is explained. The sensor is then tested experimentally with
an uncoated fiber tip and a gold mirror. Based on the spectral analysis, the effect of working distance
on interference visibility is explained.",
  booktitle="Proceedings of the 24th Conference STUDENT EEICT 2018",
  chapter="147162",
  howpublished="online",
  year="2018",
  month="april",
  pages="378--382",
  type="conference paper"
}