Analysis and Designing of Photonic Crystal Fiber

A simple index-guiding hexagonal-lattice photonic crystal fiber is presented in this paper for almost Zero Ultra Flattened Chromatic Dispersion with extremely low confinement loss. In this type of PCF, finite-difference time-domain (FDTD) method with the perfectly matched layers boundary conditions has been used. The proposed holey fiber presents dispersion flattened optical fiber (DF-PCF) for tailoring near-zero ultra-flatten dispersion of 0.58 ps /nm/km for 1.265 µm to 1.64 µm wide wavelength range or 375 nm flat band as well as low confinement losses of near 10-5 dB/km. By simulation result, it is possible to achieve near-zero ultra-flatten dispersion of 0.58 ps/nm/km for 1.265 µm to 1.64 µm with low confinement losses of the order less than 10-5 dB/km for the second and third optical window which can be properly utilized in broadband optical transmission applications.