Symmetric optical switches using coupled Fabry–Perot resonators

An analysis is made of the feasibility of using two identical nonlinear Fabry–Perot resonators, coupled weakly by a shared electromagnetic field, as all-optical logic elements of optical computers. The functional capabilities of such resonators are identical with the capabilities of known devices, but the replacement of an electrical feedback mechanism with an electromagnetic one should make it possible to increase considerably the switching frequency.