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.
LanguageEnglish
Pages1220-1226
Number of pages7
JournalIEEE Sensors Journal
Volume11
Issue number5
DOIs
Publication statusPublished - 9 Nov 2010

Fingerprint

field strength
Polarization
Magnetic fields
polarization
magnetic fields
fibers
Fiber Bragg gratings
retaining
Birefringence
multiplexing
Multiplexing
optical measurement
Temperature measurement
Temperature
Bragg gratings
temperature
birefringence
temperature measurement
Optical fibers
optical fibers

Keywords

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

Cite this

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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.",
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Polarization-switching FBG interrogator for distributed point measurement of magnetic field strength and temperature. / Orr, Philip; Niewczas, Pawel.

In: IEEE Sensors Journal, Vol. 11, No. 5, 09.11.2010, p. 1220-1226 .

Research output: Contribution to journalArticle

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