Abstract
Highly birefringent photonic crystal fibers (PCFs) with low confinement
loss with ultralow and ultraflattened chromatic dispersions at wide wavelength
band are presented. The transverse electric field vector distributions of
two linearly polarized fundamental modes, their effective indices, modal birefringence,
confinement losses and chromatic dispersion of the proposed PCFs are reported
by using full-vector finite-element method (FEM). Significant improvements
of PCFs in terms of the birefringence, chromatic dispersion and confinement
losses are demonstrated by careful investigation of all air holes in each
ring, air holes diameters and hole-to-hole spacing. In addition to this, the
polarization beat length results of the proposed PCFs are also reported and
discussed thoroughly.
© 2008 IEEE
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