Abstract
This paper presents the results of the modal analysis of an index guiding soft glass
photonic crystal fiber infiltrated with a nematic liquid crystal (NLC-PCF). The modal analysis
is carried out using the full vectorial finite difference method which is capable of dealing
accurately with anisotropic waveguide problems. The analyzed parameters are the effective
index, birefringence, dispersion, effective mode area, and confinement losses for the two
fundamental polarized modes. The effects of the structure geometrical parameters, rotation
angle of the director of the NLC and temperature on the modal properties are investigated. The
numerical results reveal that the proposed design offers high birefringence of 0.012 at the
operating wavelength 1.55 $\mu $m with low losses for the two polarized modes. In addition, the structure is
tailored to obtain a flat dispersion over a wide range of wavelengths with high
birefringence.
© 2009 IEEE
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