Chromatic dispersion control in photonic crystal fibers: application to ultra-flattened dispersion

In order to control dispersion and dispersion slope of indexguiding photonic crystal fibers (PCFs), a new controlling technique of chromatic dispersion in PCF is reported. Moreover, our technique is applied to design PCF with both ultra-low dispersion and ultra-flattened dispersion in wide wavelengt...

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Bibliographic Details
Published in:Optics express 2003-04, Vol.11 (8), p.843-852
Main Authors: Saitoh, Kunimasa, Koshiba, M, Hasegawa, T, Sasaoka, E
Format: Article
Language:English
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Summary:In order to control dispersion and dispersion slope of indexguiding photonic crystal fibers (PCFs), a new controlling technique of chromatic dispersion in PCF is reported. Moreover, our technique is applied to design PCF with both ultra-low dispersion and ultra-flattened dispersion in wide wavelength range. A full-vector finite element method with anisotropic perfectly matched layers is used to analyze the dispersion properties and the confinement losses in a PCF with finite number of air holes. It is shown from numerical results that it is possible to design a fourring PCF with flattened dispersion of 0 +/- 0.5 ps/(km.nm) from 1.19 m to 1.69 m wavelength range and a five-ring PCF with flattened dispersion of 0 +/- 0.4 ps/(km.nm) from 1.23 m to 1.72 m wavelength range.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.11.000843