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Advances in Materials Science and Engineering
Volume 2018 (2018), Article ID 1672369, 16 pages
Research Article

Ray-Tracing-Based Modeling of Clad-Removed Step-Index Plastic Optical Fiber in Smart Textiles: Effect of Curvature in Plain Weave Fabric

1Department of Materials Design Engineering, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
2Department of Fiber System Engineering, Yeungnam University, Gyungsan 38541, Republic of Korea

Correspondence should be addressed to Joon Seok Lee; and In Hwan Sul; moc.liamg@lus.nawhni

Received 30 August 2017; Accepted 19 December 2017; Published 29 March 2018

Academic Editor: Charles C. Sorrell

Copyright © 2018 Sun Hee Moon et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Plastic optical fiber was chosen for information delivery media in smart textile. Cladding layer was peeled off by chemical and mechanical methods to find optimal peeling conditions. Both radial side illumination and longitudinal end-tip illumination were measured for visible light of 627 µm wavelength. A half-cone-shaped jig was manufactured using 3D printing to give various curvature conditions to fibers. Also POFs were embedded in plain weave textile structure to measure the light dissipation effect. The waveguide phenomenon was modeled using discrete ray tracing technique and ray-to-interface collision detection algorithm. Results from the proposed modeling technique showed linear relationship with those from experiment.