Abstract
In this paper, we numerically demonstrate a large negative dispersion with highly birefringent square lattice photonic crystal fiber (SLPCF) in the entire telecom wavelength bands. Finite element method with perfectly matched layer boundary condition is used to evaluate the modal properties of the fiber. Numerical results reveal that it is possible to obtain a large negative dispersion coefficient of -897 ps/(nm.km), a relative dispersion slope (RDS) close to that of single mode fiber (SMF) of about 0.0036 nm-1 and birefringence of the order 1.34×10-2 at 1.55 μm. To evaluate the tolerance of fabrication variation of structural parameters from their optimum value is carried out.
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