Abstract
We present a two-way hitless reconfigurable optical add/drop multiplexer (ROADM) and an Optical Cross Connect (OXC) structures based on microring resonators (MRRs). The OXC is simulated by the transfer matrix compound with Finite-Different Time-Domain method, and the results show that optical signals can be carried out to any destination in this structure. The two-way hitless ROADM is suit for two-way network and the OXC can be used as core node in mesh network. It is shown the port number can be reduced when use the structures presented as the node module in optical networks.
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