OPTICAL NETWORK SYSTEM

摘要

It is possible to perform routing while maintaining an optical signal without generating a wavelength overlap. A set wavelength output unit (13) outputs a set wavelength. An N_k axis filter (11-k) receives an N_k axis optical signal flowing through a ring of the N_k axis direction and an N_k-1 axis optical signal branched and outputted in the local node, removes the wavelength identical to the N_k-1 axis optical signal from the N_k axis optical signal, and performs a filter process of insertion of the wavelength of the N_k-1 axis optical signal. An N_k axis branching unit (12-k) branches the N_k axis optical signal into two parts, outputs one of the parts through the ring of the N_k axis direction, and outputs the other part toward a confluence with the N_k+1 axis optical signal flowing through the ring of the N_k+1 axis direction within the local node if k < n and toward the wavelength separation destination if k = n. A wavelength separation filter (14) receives the N_k axis optical signal outputted to the wavelength separation destination and separates an arbitrary wavelength. A light transmission medium (20) connects a plurality of light transmission nodes (10) into an n-dimensional torus network.