SOI光开关阵列的比较

In this paper，To increase every year more and more bandwidth, all optical network is only used to provide huge bandwidth needed for the future. The optical switch is the basic element in optical networks, this paper focuses on the banyan optical switch and crossbar type optical switch structure and properties to make the contrast of the two types of optical switch cost, blocking state the length of the shortest path and optical switch make the performance analysis, we designed and simulated of two types of 8×8 optical switch array, the switch unit adopts multimode interference coupler (MMI) -MZI2×2 optical switch structure.