Transparent optical networks with photonic matrices realized with crossbar circuit

The concept of the realization of the transparent optical networks for different purposes has been presented. Photonic matrices for realization of network nodes have been classified. The most common network node with linking and drop and insert functions has been presented in the form of the crossbar circuits with discussions of circuit composition and impacts of the circuit to the QoS. Also, it has been proposed the method and the scheme for connections between entrances and exits in network node with functions of linking and drop and insert.