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Proceedings Paper

The effect of optical fiber endface surface roughness on light coupling
Author(s): Yousef A. Gharbia; Gareth Milton; Jayantha Katupitiya
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Paper Abstract

This paper presents a quantitative measurement of the effect of surface roughness of optical fiber end-faces on light coupling efficiency. Fibers tested included cleaved fibers and fibers with ground endfaces of varying degrees of surface roughness. The endfaces were ground on a specially built nano-grinding machine. The assessment was based on the Gaussian distribution of the intensity of light collected from both the cleaved and the ground endfaces of the fibers. Measurements of the total amount of light at the output end were also made. Results showed that light-coupling efficiency has improved dramatically with the improvement of surface finish. Surface roughness measurements were carried out using atomic force microscopy (AFM)

Paper Details

Date Published: 26 February 2004
PDF: 8 pages
Proc. SPIE 5252, Optical Fabrication, Testing, and Metrology, (26 February 2004); doi: 10.1117/12.516522
Show Author Affiliations
Yousef A. Gharbia, Univ. of New South Wales (Australia)
Gareth Milton, Univ. of New South Wales (Australia)
Jayantha Katupitiya, Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 5252:
Optical Fabrication, Testing, and Metrology
Roland Geyl; David Rimmer; Lingli Wang, Editor(s)

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