Exhaled breath optical fiber sensor based on LMRs for respiration monitoring

  • P. Sanchez
  • , C. R. Zamarreño
  • , M. Hernaez
  • , I. R. Matias
  • , F. J. Arregui

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

18 Citations (Scopus)

Abstract

In this work, the fabrication and characterization of a small and portable exhaled breath sensor based on Lossy Mode Resonances (LMR) is presented. Tin oxide (SnO2) coatings fabricated onto optical fibers are used as LMR supporting coatings. The principle of operation is based on the measurement of refractive index changes by the LMR device (with an average sensitivity of 8355 nm/RIU) originated by the condensation of micro water droplets in the surroundings of the SnO2 coating during the breath natural process. The sensor shows a repetitive response with less than 100 ms of response time and a wavelength shift of 150 nm from inhalation to exhalation.

Original languageEnglish
Title of host publicationIEEE SENSORS 2014, Proceedings
EditorsFrancisco J. Arregui
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1142-1145
Number of pages4
EditionDecember
ISBN (Electronic)9781479901616
DOIs
Publication statusPublished - 12 Dec 2014
Externally publishedYes
Event13th IEEE SENSORS Conference, SENSORS 2014 - Valencia, Spain
Duration: 2 Nov 20145 Nov 2014

Publication series

NameProceedings of IEEE Sensors
NumberDecember
Volume2014-December
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference13th IEEE SENSORS Conference, SENSORS 2014
Country/TerritorySpain
CityValencia
Period2/11/145/11/14

Keywords

  • Breath sensor
  • LMR
  • Optical fiber
  • Sputtering
  • Tin oxide

Fingerprint

Dive into the research topics of 'Exhaled breath optical fiber sensor based on LMRs for respiration monitoring'. Together they form a unique fingerprint.

Cite this