The invention relates to a
wavelength-allocation-based three-dimensional optical on-
chip network router communication
system and method. The communication
system employs a photoelectric mixing type 3D mesh network topological structure and a novel seven-port clog-free
optical router capable of realizing multi-
wavelength communication; and when the
system is applied to a three-dimensional optical on-
chip network, no
wavelength conversion is needed. Because of utilization of the
optical router, the consumed number of optical devices like micro ring resonators and waveguides and the like is reduced. Besides, according to the communication method, when a node of each layer sends out an optical
signal, the employed wavelengths are identical; and optical signals with all wavelengths can be received at all
layers, so that problems of severe
network congestion, low link
utilization rate, and limited expansibility due to utilization of single wavelength communication by the existing optical on-
chip network architecture can be solved. Therefore, with the system and method, the
network congestion probability can be reduced; the communication
delay can be reduced; and the
throughput capacity and network saturation point can be improved.