MMI reflectors with free selection of reflection to transmission ratio

Abstract

We investigate a new class of integrated mirrors, so called MMI reflectors. In addition to\none-port full reflectors, we introduce two-port MMI reflectors, capable of both reflection and transmission. The reflection to transmission ratio in these devices can be set freely by changing their geometry. This is deinonstrated through numerical simulations as well as through a set ofworking devices realized on an indium phosphide layer stack.