New Design of All-Optical Logic Universal NAND Gate Formed by NOT (A AND B) Gates Using Michelson Interferometer Based on Semiconductor Optical Amplifier

摘要

In this work, proposed a new scheme to realize all-optical universal NAND logic gate at highspeed performance on basis non-linearity of Semiconductor optical amplifier (SOA) with Michelson interferometer and an optical filter, based on cross-gain modulation (XGM). NAND operation canbe performed by the combination of XOR and NOR logic gates, or else from the union of the AND with NOT gates. Therefore, three all-optical logic gates AND, NOT and NAND, can be simultaneously realized in a single format, similarly with XOR, NOR and NAND. The performance of this scheme analyzedby calculating the quality factor (Q-factor) of the resulting data streams, BER and OSNR using Optical Time Domain Visualizer, Oscilloscope Visualizer and Eye Diagram Analyzer. The results shows AND, NOT and NAND operations at 10 Gb/s with good signal to noise ratio are feasible.