All-optical control-flow and enhancement of optical neural networks (Invited Paper)

Current approaches to optical neural networks are only focused on the arithmetic operations, such as matrix vector multiplication and in some cases the activation function. The control flow to enable large matrices, multiple connected layers or methods to increase precision are completely delegated to digital electronics. Here we present our approach to enabling all-optical control flow and precision control to enable full optical AI inference in the future, eliminating the need to jump between the electronic and optical domain for each layer, to increase performance and efficiency.