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Proceedings Paper

Critical angle in fluorescent polymer optical fibers
Author(s): I. Bikandi; M. A. Illarramendi; J. Zubia; J. Arrue; F. Jiménez; I. Ayesta; L. Bazzana
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Paper Abstract

The aim of this work is to analyze the propagation of the emitted light in fluorescent POFs by using the side-illumination technique. In particular, we have studied the angular distribution of the emitted light as a function of the launching angle and of the height of the incident beam. A theoretical model has been developed in order to explain the experimental measurements. A good agreement between the theoretical and the experimental results has been obtained both qualitatively and quantitatively. It is shown that both the theoretical and the experimental critical angles are appreciably higher than the meridional one corresponding to the maximum acceptance angle for a single source placed at the fiber axis. This increase changes the value of several important parameters in the performance of active fibers. The analysis has been performed in polymer optical fibers doped with a conjugated polymer.

Paper Details

Date Published: 20 February 2012
PDF: 10 pages
Proc. SPIE 8258, Organic Photonic Materials and Devices XIV, 825814 (20 February 2012); doi: 10.1117/12.906728
Show Author Affiliations
I. Bikandi, Univ. del País Vasco (Spain)
M. A. Illarramendi, Univ. del País Vasco (Spain)
J. Zubia, Univ. del País Vasco (Spain)
J. Arrue, Univ. del País Vasco (Spain)
F. Jiménez, Univ. del País Vasco (Spain)
I. Ayesta, Univ. del País Vasco (Spain)
L. Bazzana, Luceat S.p.A. (Italy)


Published in SPIE Proceedings Vol. 8258:
Organic Photonic Materials and Devices XIV
Christopher Tabor; François Kajzar; Toshikuni Kaino; Yasuhiro Koike, Editor(s)

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