Plastic optical fiber respiration sensor based on in-fiber microholes
- Authors
- Ahn, D.; Park, Y.J.; Shin, J.-D.; Lee, J.; Park, J.
- Issue Date
- Jan-2019
- Publisher
- John Wiley and Sons Inc.
- Keywords
- in-fiber microhole; optical fiber sensor; plastic optical fiber; respiration
- Citation
- Microwave and Optical Technology Letters, v.61, no.1, pp.120 - 124
- Journal Title
- Microwave and Optical Technology Letters
- Volume
- 61
- Number
- 1
- Start Page
- 120
- End Page
- 124
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/30844
- DOI
- 10.1002/mop.31524
- ISSN
- 0895-2477
- Abstract
- This paper presents a novel respiration sensor based on multiple in-fiber microholes drilled along a plastic optical fiber (POF) that is stitched to a waist-band wrapped around the patient's abdomen. The bending loss of a POF with a single microhole is analyzed in order to enhance the sensor sensitivity. Several sensors were fabricated using a 1.5 mm-diameter POF with different numbers and spacing of 0.7 mm-diameter microholes. The sensitivity of the respiration sensor increased when increasing the number and spacing of the microholes, where the POF respiration sensor with seven 0.7 mm-diameter in-fiber microholes spaced at 15 mm showed the highest sensitivity and sufficient strength for respiratory monitoring. Thus, the experimental results confirmed that a POF sensor based on in-fiber microholes can be effectively used to monitor the respiration of patients. ? 2018 The Authors. Microwave and Optical Technology Letters published by Wiley Periodicals, Inc.
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