DocumentCode :
1091390
Title :
Tolerance requirements for dispersion free single-mode fiber design: Influence of geometrical parameters, dopant diffusion, and axial dip
Author :
Francois, Pierre-Luc
Author_Institution :
Centre National d´´Etudes des Telecommunications, Lanion Cedex, France
Volume :
18
Issue :
10
fYear :
1982
fDate :
10/1/1982 12:00:00 AM
Firstpage :
1490
Lastpage :
1499
Abstract :
The dispersion sensitivity to small changes in index-differences, radius, and wavelength is investigated in the case of dispersion free single-mode fibers. If a minimum bandwidth is required, tolerances on the various parameters can then be deduced: singly- and doubly-clad structures are compared. Constant reference is made to the HE11mode spot-size to relate dispersion properties and attenuation. A nonzero fundamental mode cutoff is shown to induce an enhanced sensitivity to a change in fiber geometrical characteristics. The effect of dopant diffusion and axial dip on dispersion is then considered and conclusions are drawn concerning the use of profiles measured on preforms to predict fiber propagation properties.
Keywords :
Optical fiber materials/fabrication; Attenuation; Bandwidth; Chromatic dispersion; Genetic expression; Germanium; Preforms; Propagation constant; Rayleigh scattering; Silicon compounds; Splicing;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.1982.1071406
Filename :
1071406
Link To Document :
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