The performance of depressed-cladding single-mode fibers with different b/a ratios

Depressed-cladding single-mode fibers with a first cladding-to-core ratio (b/a) ranging from seven to one and relative refractive-index differences of the core from 0.25 to 0.35% and of the cladding from 0 to -0.2% are investigated experimentally with respect to the LP/sub 11/ mode cutoff properties...

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Bibliographic Details
Published in:Journal of lightwave technology 1991-06, Vol.9 (6), p.689-694
Main Authors: Hagemann, H.-J., Lade, H., Warnier, J., Wiechert, D.U.
Format: Article
Language:English
Subjects:
Applied sciences
Attenuation
Circuit properties
Costs
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fabrication
Glass
Integrated optics. Optical fibers and wave guides
Modems
Optical and optoelectronic circuits
Optical attenuators
Optical refraction
Refractive index
Samarium
Silicon compounds
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Summary:Depressed-cladding single-mode fibers with a first cladding-to-core ratio (b/a) ranging from seven to one and relative refractive-index differences of the core from 0.25 to 0.35% and of the cladding from 0 to -0.2% are investigated experimentally with respect to the LP/sub 11/ mode cutoff properties, the mode-field diameter, the dispersion, and the bending attenuation. Numerical calculations based on actual profile parameters of the bend loss and the mode-field diameter agree well with experiment. It is demonstrated that low attenuation and bend losses independent of b/a can be obtained if the cutoff wavelength is kept constant by adjusting the core radius, the core index or the index of the first cladding.< >
ISSN:0733-8724
1558-2213
DOI:10.1109/50.81969