Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/124691
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Type: Journal article
Title: Distributed optical fiber sensing of micron-scale particles
Author: Peng, L.
Li, J.
McLaughlin, R.A.
Ebendorff-Heidepriem, H.
Warren-Smith, S.C.
Citation: Sensors and Actuators A: Physical, 2020; 303:1-6
Publisher: Elsevier
Issue Date: 2020
ISSN: 0924-4247
0924-4247
Statement of
Responsibility: 
Lu Peng, Jiawen Li, Robert A. McLaughlin, Heike Ebendorff-Heidepriem, Stephen C. Warren-Smith
Abstract: Distributed sensing of micron-scale particles is achieved with an exposed-core microstructured optical fiber using optical frequency domain reflectometry. The reference and sample signals of the interferometer are generated in the same fiber path, which gives this fully fiber-integrated sensor the potential to be used as a portable probe for in-vivo sensing. This sensing concept has great advantages over reported single-point fiber sensors due to its distributed sensing property. We demonstrate the technique using 10 μm polystyrene beads, by detecting their locations along the fiber through backscatter of the exposed-core fiber’s evanescent field. A simplified theoretical model is proposed to estimate the relationship between the particle’s size and detection distance after considering the system’s inherent losses. The proposed sensing platform offers opportunities for distributed sensing of biological targets.
Keywords: Distributed sensing; microstructured optical fiber; optical fiber sensing; interference
Rights: © 2019 Elsevier B.V. All rights reserved.
RMID: 1000011484
DOI: 10.1016/j.sna.2019.111762
Grant ID: http://purl.org/au-research/grants/arc/CE140100003
Appears in Collections:Medicine publications

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