Dispersion-shifted optical fibre for wavelength dividion multipexing optical fiber transmission systems

摘要

A monomode fiber optic cable is made with an optical center having a central refractive index (10), a middle profile section with refractive index (11) lower than the center and outer refractive index (12). The core gradients provide an effective surface equal or above 60 square micro meters and a chromatic dispersion between 3 and 14 ps/(nm.km). The chromatic slope dispersion and effective surface are related by a constant.