Ultrafast all-optical nonlinear activator employing silicon/graphene hybrid integration

Graphene is a two-dimensional material with a hexagonal lattice structure made up of carbon atoms, which has exceptional optoelectronic properties such as high thermal conductivity, broad light absorption wavelength, and ultrafast carrier mobility. As a result, various graphene-based optoelectronic devices have been developed with exceptional performance. In this talk, an ultrafast all-optical nonlinear activator with a response time of 93.6 ps will be presented. This breakthrough in speed of all-optical nonlinear activators opens the door to significant improvements in the performance and applicability of ONNs.