Silicon-based photonic all-optical modulator

In a paper published in Nature Nanotechnology, researchers at Purdue University recently introduced a strategy to control light using only light (i., all-optical modulation) in a silicon device leveraging a so-called electron avalanche process. A strong optical linearity is of crucial importance for the development of ultrafast optical switches, devices that can control either light or electrical signals by modulating the properties of a light-based signal (e. Notably, these switches are central components of. Herein, an overview of current silicon modulator types and modern integration approaches is presented including direct bonding methods and micro-transfer printing. The proposed modulator can generate both intensity and phase modulation, optimizing performance without alter-ing the underl ing design or constraining platform limitations.