Samsung Electronics Co., Ltd.

Er-Ping Zhang

Woo-Shik Kang

An optical switching network has: N input couplers each having a cell input port and a recursive input port, N output couplers each having a cell output port and a recursive output port, N/2 switch couplers connected between the input couplers and the output couplers, and a controller having a routing table, for generating control signals for the respective input, output, and switch couplers upon input of cells. The optical switching network has a single-stage optical recursive loop in which an x-numbered recursive output port is connected to a 2x-numbered recursive input port if 0&lE;x<N/2, and the x-numbered recursive output port is connected to a (2x&minus;N&plus;1)-numbered recursive input port if N/2&lE;x<N. The N input couplers receive the cells via the cell input ports upon input of the cells, the N/2 switch couplers recursively switch the cells log,N-times by connecting the recursive output ports to the corresponding recursive input ports during circulations, and the N output couplers output the cells via the cell output ports at the termination of switching.

Growing community of inventors

Seoul, South Korea

Er-Ping Zhang