Optical fiber refractometers based on sputtered indium tin oxide coatings

  • S. Lopez*
  • , C. R. Zamarreño
  • , M. Hernaez
  • , I. Del Villar
  • , F. J. Arregui
  • , I. R. Matias
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

This work presents the fabrication of optical fiber refractometers based on indium tin oxide (ITO) coatings deposited by sputtering with response in the visible spectral region. ITO thin-films have been sputtered by employing a rotating mechanism that enables the fabrication of smooth and homogeneous coatings onto the optical fiber core. Fabricated ITO coated optical fiber devices present several resonances in the visible and near infrared region. These resonances show high optical power attenuations (more than 10 dB) in the visible spectral region, which produces changes in the colour of the output visible light. Therefore, since these resonances shift as a function of the refractive index (RI) of the surrounding medium it is feasible to determine the RI of the outer medium in contact with the ITO coating by simply monitoring the chromatic coordinates (colour change), x and y, of the visible output light.

Original languageEnglish
Title of host publication2011 5th International Conference on Sensing Technology, ICST 2011
Pages585-588
Number of pages4
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 5th International Conference on Sensing Technology, ICST 2011 - Palmerston North, New Zealand
Duration: 28 Nov 20111 Dec 2011

Publication series

NameProceedings of the International Conference on Sensing Technology, ICST
ISSN (Print)2156-8065
ISSN (Electronic)2156-8073

Conference

Conference2011 5th International Conference on Sensing Technology, ICST 2011
Country/TerritoryNew Zealand
CityPalmerston North
Period28/11/111/12/11

Keywords

  • Optical fiber
  • colour
  • indium tin oxide
  • refractive index
  • refractometer
  • resonances
  • sensor
  • sputtering

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