Optical path design apparatus and optical path design method

摘要

In an optical communication network using wavelength division multiplexing, if the use of optical frequency slots concentrates on a specific optical fiber, the accommodation efficiency of the optical path decreases, and efficient use of the optical communication network becomes difficult. An optical path design apparatus according to the invention searches for a path of an optical path accommodating a communication request, and accommodates the optical path in path candidate selecting means for selecting a plurality of path candidates, and in an optical fiber on a plurality of path candidates. The optical path is selected based on the optical frequency band utilization factor in the optical fiber from among the optical path candidate selecting means for selecting a plurality of optical path candidates by allocating the optical frequency bands necessary for each and the plurality of optical path candidates. And an optical path determination means for determining.