A unique design of Photonic Crystal Fibers for negative dispersion and high birefringence

In this paper we propose some new geometries of Photonic Crystal Fiber (PCF). These new geometries are derived from the design of antenna of different geometry . We have used the concept of C-shaped, L-shaped, E-shaped and H-shaped antenna for designing the PCF. At a wavelength of 0.85 μm the C-shaped PCF structure report the most negative dispersion and almost zero otherwise. The birefringence of H-shaped PCF structure is high compare to that of other proposed PCF structure. The confinement Loss reported is of the order of 10^-3 for all the proposed PCF structures. The confinement factor was reported to be maximum for all the proposed structures other than proposed C-shaped PCF structure. The far field pattern (FFP) is observed of elliptical shape for H-shaped and L-shaped PCF structure whereas it is of circular shape for C-shaped and E-shaped PCF structure.