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Biomedical Optics Express

Biomedical Optics Express

  • Editor: Joseph A. Izatt
  • Vol. 3, Iss. 12 — Dec. 1, 2012
  • pp: 3325–3331

A miniature optical breathing sensor

Jinesh Mathew, Yuliya Semenova, and Gerald Farrell  »View Author Affiliations

Biomedical Optics Express, Vol. 3, Issue 12, pp. 3325-3331 (2012)

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We demonstrate a novel miniature optical breathing sensor based on an Agarose infiltrated photonic crystal fiber interferometer. The sensor detects the variation in relative humidity that occurs between inhaled and exhaled breath. The sensor interrogation system can determine the breathing pattern in real time and can also predict the breathing rate and the breathing status during respiration. The sensor is suitable for monitoring patients during a magnetic resonance imaging scan where use of sedatives and anesthetics necessitates breathing monitoring; electronic sensors are not suitable in such an environment and a visual observation of the patient's respiratory efforts is often difficult.

© 2012 OSA

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(170.1610) Medical optics and biotechnology : Clinical applications
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Biosensors and Molecular Diagnostics

Original Manuscript: July 3, 2012
Revised Manuscript: October 24, 2012
Manuscript Accepted: October 25, 2012
Published: November 26, 2012

Jinesh Mathew, Yuliya Semenova, and Gerald Farrell, "A miniature optical breathing sensor," Biomed. Opt. Express 3, 3325-3331 (2012)

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