All-Optical Logic Gates Based on Semiconductor Optical Amplifiers and Tunable Filters

摘要

All-optical logic gates based on semiconductor optical amplifiers (SOAs) and tunable filters are investigated in this paper. Based on single SOA and different filter detuning, five different logic gates at 40Gb/s were demonstrated and all-optical digital 2-4 encoder was also realized. All-optical generation of minterms for two input signals and three input signals are also demonstrated based on comb filters and SOAs. Advantages such as powerful function, flexible operational principle and possible integrated could help these schemes to have potential applications in optical computing and optical networks.