Dispersion compensation design method and dispersion compensation design system

A dispersion compensation design system, comprising:

• a segment dividing unit configured to divide an optical network into a plurality of segments of a linear network or a ring network;
• a path classifying unit configured to classify one of paths of the optical network, as a specific type path, the one of the paths being incapable of transmitting an optical signal by itself and contained in a longer one of the paths having a route longer than that of the one of the paths and capable of transmitting the optical signal;
• a segment reconfiguration unit configured to reconfigure the segments so as to maximize a number of the specific type paths;
• a dispersion compensation amount computing unit configured to compute a dispersion compensation amount in one of spans of the optical network so as to minimize the number of the specific type paths within the reconfigured segment;
• and
• an update unit configured to update the dispersion compensation amount in the one of the spans of the optical network with the computed dispersion compensation amount obtained by the dispersion compensation amount computing unit.