Humidity sensor based on lossy mode resonances on an etched single mode fiber

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

2 Citations (Scopus)

Abstract

Here we present a new structure to fabricate optical fiber sensors. This structure consists on an etched single mode optical fiber coated with a thin film of a semiconductor material by means of sputtering. The optical fiber was etched with hydrofluoric acid until it reaches 19 μm of diameter. Then it was attached to a U-holder and coated with the indium oxide nanocoating. The thin film generates a lossy mode resonance and when the relative humidity increases, the wavelength of the resonance shifts. Changes of 30% to 80% RH have been applied to the device obtaining a wavelength shift of 12 nm.

Original languageEnglish
Title of host publication2015 9th International Conference on Sensing Technology, ICST 2015
PublisherIEEE Computer Society
Pages365-368
Number of pages4
ISBN (Electronic)9781479963140
DOIs
Publication statusPublished - 21 Mar 2016
Externally publishedYes
Event9th International Conference on Sensing Technology, ICST 2015 - Auckland, New Zealand
Duration: 8 Dec 201511 Dec 2015

Publication series

NameProceedings of the International Conference on Sensing Technology, ICST
Volume2016-March
ISSN (Print)2156-8065
ISSN (Electronic)2156-8073

Conference

Conference9th International Conference on Sensing Technology, ICST 2015
Country/TerritoryNew Zealand
CityAuckland
Period8/12/1511/12/15

Keywords

  • etched optical fiber
  • lossy mode resonances
  • optical fiber humidity sensors

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