Investigation of pulse propagation through a nanostructured core fiber by calculating its dispersion properties

Novel types of optical fibers known as nanostructured core fibers were recently fabricated. In the present paper, we calculated the dispersion coefficients and nonlinear properties of a Germanium-doped silica fiber with a nanostructured core in the present study. The group velocity dispersion as well as higher-order dispersion coefficients were plotted and discussed. Finally, by solving the nonlinear Schrodinger equation, we studied the propagation of an optical pulse through the described fiber. In our simulations, we observed extreme spectral broadening in the range of 800 and 2100 nm when a femtosecond pulse near the fiber ZDW was launched into it.