Abstract
A new highly birefringent octagonal photonic crystal fiber (Hi-Bi OPCF) with
a rectangular array of four elliptical airholes in the fiber core region is proposed
and analyzed using the full-vector finite element method with anisotropic perfect
match layer absorbing boundaries. Numerical results show that the phase
birefringence of the photonic crystal fiber (PCF) reaches 3.43?10?2 at the
wavelength of 1 550 nm. Moreover, two zero-dispersion wavelengths are achieved in
the visible and near infrared wavelength regions for one polarization state but not
in the other.
© 2011 Chinese Optics Letters
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