Polarization-switching FBG interrogator for distributed point measurement of magnetic field strength and temperature

Philip Orr, Pawel Niewczas

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report on the design and implementation of a novel optical fiber system for dual point measurement of magnetic field strength and temperature. The system incorporates a polarization switching technique that enables ratiometric processing of the orthogonal circularly polarized reflections from low-birefringence fiber Bragg gratings. High-resolution magneto-optical measurement of either static or dynamic magnetic fields may be achieved while retaining the capability for serial multiplexing and temperature measurement. The system provides a practical solution to intrinsic fiber point measurement of magnetic field, leading to potential applications in adverse environmental conditions, where electronic or extrinsic optical technologies are unsuitable.
Original languageEnglish
Pages (from-to)1220-1226
Number of pages7
JournalIEEE Sensors Journal
Volume11
Issue number5
DOIs
Publication statusPublished - 9 Nov 2010

Keywords

  • fibre Bragg gratings
  • sensors
  • polarisation
  • magneto-optical effects
  • optical fibre sensing

Fingerprint Dive into the research topics of 'Polarization-switching FBG interrogator for distributed point measurement of magnetic field strength and temperature'. Together they form a unique fingerprint.

  • Cite this