Open AccessChromatic dispersion control in photonic crystal fibers: application to ultra-flattened dispersion
Author(s) -
Kunimasa Saitoh,
Masanori Koshiba,
Takemi Hasegawa,
Eisuke Sasaoka
Publication year - 2003
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.11.000843
Subject(s) - optics , materials science , dispersion (optics) , zero dispersion wavelength , photonic crystal fiber , wavelength , modal dispersion , polarization mode dispersion , photonic crystal , dispersion shifted fiber , optical fiber , optoelectronics , physics , fiber optic sensor
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.