Active Information Manipulation via Optically Driven Acoustic-Wave Interference

Implementing on-chip information processing systems through photonic–phononic interactions has attracted considerable interest owing to its potential for storing, sensing, and signal processing, but the generation extinction of acoustic waves are determined by existence pump power phonon lifetime. Here, we demonstrate acoustic-wave interference active manipulation optically driven in a silicon controller-emitter-receiver system. The filtered transmitted receiver narrow bandwidth 6.2 MHz can be amplified or canceled with contrast greater than 40 dB adjusting relative microwave phase between emitter controller. pulse-train signals transmitted, amplified, 3 cutoff frequency 3.1 MHz. proposed technique provides solution highly selective filtering, shifters, manipulation, offering new functions optomechanical photonics.