Some PCF Structures with elliptical air holes Based on Dolph Tschebysheff Polynomials and its Propagation Characteristics

2689 | P a g e Abstract— In this paper we propose some novel photonic crystal fiber (PCF) structures whose physical dimensions/geometries are derived from Dolph Tschebysheff polynomials (DTP) based antenna array. The simulations of the proposed structures are carried out using OptiFDTD simulator with full vector mode solver using FDTD method and the results are compared with the PCF structures based on Pascal’s triangle (PT). It is observed that the proposed structures exhibit almost negligible waveguide dispersion behaviour over a very large wavelength range and the order of dispersion of the PCF structures based on DTP is same as that of the PCF structures based on PT. These structures are therefore suitable candidates for applications demanding such behaviour such as long distance optical communications or high data rate data transfer applications. The birefringence of the structures based on DTP is, however, more than the structures based on PT.