Simple realization of all-optical high-speed (40, 80 and 160 Gb s(-1)) XOR and OR logic gates using LiNbO3 waveguides

摘要

A simple realization of all-optical high-speed XOR and OR logic gates is proposed and simulated. Using a single quasi-phase-matched (QPM) periodically poled LiNbO3 (PPLN) waveguide and based on the sum-frequency generation (SFG), simultaneous operations of XOR and OR at 40, 80 and 160 Gb s(-1) are numerically demonstrated. The Q factor and extinction ratio are analysed, showing impressive operation performance.