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A useful approximation for the cladding index of holey fibers

We present a simplified quantitative description of the effective refractive index of the cladding region in holey fibers. Our approximation is based on a smooth interpolation between two limiting cases. It reproduces the results of extensive numerical calculations to remarkable precision and may of...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2010-04, Vol.99 (1-2), p.241-245
Main Authors: Mahnke, C., Mitschke, F.
Format: Article
Language:English
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Summary:We present a simplified quantitative description of the effective refractive index of the cladding region in holey fibers. Our approximation is based on a smooth interpolation between two limiting cases. It reproduces the results of extensive numerical calculations to remarkable precision and may often make such calculations unnecessary. We test our description on several different geometries involving common ones, but also a rather exotic fractal cladding structure.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-009-3846-8