Calculation device, calculation method and program

Abstract

A calculation device calculates input power to an optical fiber transmission line of each channel in a band having a width of 15 THz or more. The calculation device calculates the input power by using a coefficient indicating an inclination of an input power spectrum by assuming that power transition in the transmission line due to an influence of stimulated Raman scattering depends on the number of existing channels in the optical fiber transmission line. The calculation device can calculate how much it is optimum to lift the input power in a short wavelength band in advance in order to make signal quality and incoming power constant from the short wavelength band to a long wavelength band on an incoming side.

Dependencies are inferred from the claim text.