Tailoring the shapes of dispersion spectra to control bandwidths in single-mode fibers

A numerical parametric study is used to gain insight into how the shapes of dispersion and bandwidth spectra are influenced by dimensions and index differences of light-guide structures with two claddings. Computer-simulated fibers are demonstrated to have bandwidths greater than 25 GHz-km across the entire 1.3-1.55-microm wavelength region.