Programmable Parallel Optical Logic Gates on a Multimode Waveguide Engine

Optical logic gates have been proposed and demonstrated on a function programmable waveguide engine constructed using buried silicon nitride waveguides in polymer set of thermal electrodes. The device can perform AND or OR operations for the input signals A B, each containing two bits information, parallel. signals, form binary current values electronic domain, are applied to subset electrodes, while computed states converted optical intensity variations at single-mode outputs. rest electrodes work as weights define function, either OR, by adjusting light interference multimode through thermo-optic effect. Simulations were first performed reveal nonlinear response received with respect current, thus allowing complex effective manipulation field engine. After chip fabrication system integration, 65,536 experiments automatically. data fed into sorting program find valid settings that satisfy respective truth table out 283,852,800 possible input/weight/output combinations. Four cases presented end, different bar contrast values. This simple, low-cost yet powerful may be further developed applications on-chip photonic computing signal switching.