On chip processor based on MMI microring resonators for image edge detection in all-optical domain

We propose a new optical processor that implement an optical vector matrix multiplication (OVMM) or dot product circuit using multimode interference (MMI) based microring resonator structures. Our structure can be integrated into only one single chip without the need of wavelength division multiplexers (WDM). The control of weight and input signals is based on the graphene material for high speed computing.