Abstract
In the simulation of photonic crystal fibers, the fixed value of the normalized equivalent core
radius
in the fully vectorial effective index method is inaccurate. For what is believed to be the first time, the
relation of
with normalized frequency
and hole-to-pitch ratio
is obtained.
The improved fully vectorial effective index method (IFVEIM) is proposed. The modal properties
computed with the IFVEIM, such as the effective index and the total dispersion, are closely
matched to those of the multipole method as well as to experimental values, and the errors of the
effective index have been reduced by 2 to 3 orders of magnitude.
© 2007 Optical Society of America
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