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PCF-multimode/endless fiber sensor for respiratory rate monitoring

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Abstract

A respiratory monitoring system was proposed based on optical fiber. The sensor consists of photonic crystal fiber (PCF) spliced with multimode fiber (MMF) to fabricate Michelson interferometer. The sensor is inserted into an oxygen mask tube and then put on the nose and mouth to monitor the respiratory rate (RR) for different cases. The results showed that when breathing increased, the intensity of light decreased. The intensity of light in the sleeping case of breathing was more intense than that when the intensity of working sport was measured. The working sport case was a higher transmittance than that of sleeping. The sensitivity of the sensor was also measured to be 231.9 pm/RH.

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Authors and Affiliations

  1. Laser and Optoelectronics Department, University of Technology-Iraq, Baghdad, Iraq

    Haneen D. Abdulkareem & Ali A. Alwahib

  2. Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq

    Bushara R. Mahdi

Authors
  1. Haneen D. Abdulkareem
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  2. Ali A. Alwahib
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  3. Bushara R. Mahdi
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Corresponding author

Correspondence to Ali A. Alwahib.

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The authors declare that there are no conflicts of interest related to this article.

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Abdulkareem, H.D., Alwahib, A.A. & Mahdi, B.R. PCF-multimode/endless fiber sensor for respiratory rate monitoring. Optoelectron. Lett. 19, 8–13 (2023). https://doi.org/10.1007/s11801-023-2114-1

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  • DOI: https://doi.org/10.1007/s11801-023-2114-1

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