A fibre-optic thermometric sensor based on the thermo-optic effect of titanium dioxide coatings

M. Naci Inci, J. S. Barton, J. D C Jones

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

An experimental determination of the thermo-optic effect of titanium dioxide is described in which the test element is a thin film deposited onto the end face of an optical fibre. The film acts as an etalon. The reflectivity of titanium dioxide films was measured as a function of temperature experimentally over the range 20°C to 500°C, and modelled theoretically to yield a value of the thermo-optic coefficient of -1.49 × 10-4 K-1. The use of the data in the design of a thin-film optical fibre temperature sensor is described. © 1997 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)121-124
Number of pages4
JournalOptics and Laser Technology
Volume29
Issue number3
DOIs
Publication statusPublished - Apr 1997

Keywords

  • Fibre-optics
  • Sensors
  • Titanium

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