Numerical Investigation of Single-mode Operation Flat Fiber and Dispersion

A Single-mode flat fiber investigated by mode matching filtering technique is presented. This class of rectangular optical fiber employed a mode filtering technique to filter high order modes. Fresnel leakage loss induced the propagation modal loss favors fundamental mode, whereas significantly filtered higher-order mode due to modal loss. This resulting mode operation can be expanded via high-aspect-ratio. We numerically analyze the via full-vectorical numerical analysis. We also cover the dispersion analysis to be estimated around wavelength of 1268 nm.