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Analytical Analysis of Side-Polished Plastic Optical Fiber as Curvature and Refractive Index Sensor

Bilro, L. ; Alberto, N. ; Sá , L.M. ; Pinto, J. L. ; Nogueira, R.N.

Journal of Lightwave Technology Vol. 29, Nº 6, pp. 864 - 870, March, 2011.

ISSN (print): 0733-8724
ISSN (online):

Journal Impact Factor: 2,567 (in 2015)

Digital Object Identifier: 10.1109/JLT.2011.2105462

The modeling of a side-polished plastic optical fiber as a sensor of two distinct physical parameters is presented. A comprehensive analytical study is performed using a geometric optic approach. Different details are taken into account, such as the geometric description of the sensor, the intensity profile of the emitter,
and the possibility of a multireflection for a light ray at the sensitive area. The good agreement between the experimental and theoretical results validates the developed analytical model.