Optical interconnect arrangement

Abstract From the Canadian patent

Abstract An arrangement for butt coupling of waveguide electrooptic plates to form a crossbar switch. The arrangement includes a stack of M splitter plates each, of which routes an injected optical signal to one of N outputs and a stack of Ncombiner plates, each of which routes the signal of a selected one of M inputs to a common output. The stack of splitter plates is rotated with respect to the stack of combiner plates and the output signal ports of the splitter plates are coupled to the input signal ports of the combiner plates so that each output of an splitter plate is connected to a different combiner plate. Within each splitter plate there is a fan-out network of waveguide …