One-picosecond optical n o r gate at room temperature with a GaAs-AlGaAs multiple-quantum-well nonlinear Fabry–Perot étalon

Abstract
The speed of a GaAs-AlGaAs optical logic gate is time resolved using a 100-fs laser system. It shows that the gating operation can be performed in ≂1 ps, the fastest reported for such a low-energy optical device. The lowest incident switching for such a device is ≲3 pJ.