Parity-time symmetry: unlocking faster and stronger optical signal processing
Chinese Academy of SciencesSignal processing is a fundamental necessity for modern society but facing significant trade-off between speed and efficiency. Towards this goal, scientist in China, Denmark and US invented a unique integrated microresonator system, that creates different states for the light that resonate at different frequencies, and allows optical signal to be processed faster and stronger. This innovation paves the way for fully chip-scale nonlinear signal processing devices that may revolutionize classical and quantum communication and computation.