Dispersion minimum of monomode fibers.

The wavelength of minimum dispersion of monomode fibers is shown to depend on the refractive properties of the core glass as well as of the cladding glass and on the fiber parameter V. Minimum-dispersion wavelengths in the 1.27-microm < lambda < 1.6-microm range are readily obtained with fibers made of fused silica and fused silica doped with GeO(2) and B(2)O(3), thus providing a wide choice of operating wavelengths for high-capacity communication systems.