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Smooth end face termination of microstructured, graded-index, and step-index polymer optical fibers

Oliveira, R. ; Bilro, L. ; Nogueira, R.N.

Applied Optics Vol. 54, Nº 18, pp. 5629 - 5633, June, 2015.

ISSN (print): 2155-3165
ISSN (online): 1559-128X

Journal Impact Factor: 1,763 (in 2008)

Digital Object Identifier: 10.1364/AO.54.005629

Abstract
A new technique, based on a partially automated process, for smooth end face termination of three types of plastic optical fibers (microstructured, graded-index, and step-index) is presented. The cross-sectional shape of the fibers is preserved, and the structure in microstructured plastic optical fibers (POFs) is of good quality, showing no plastic deformations. The termination is achieved in a fast and easy way, independent of material properties or structures inside the fiber. The process is reproducible and it shows that thin-diameter POFs can be used. The POFs’ near-field pattern and the insertion loss are also analyzed, showing good coupling capabilities.