All-Optical XNOR gate Using Integrated SOA-based Mach-Zehnder Interferometer

摘要

An all-optical exclusive NOR gate using integrated SOA-based Mach-Zehnder interferometer is proposed for the first time. Numerical analysis shows the switching window of the proposed XNOR gate is synchronous with the dynamic gain experienced by the probe pulses. Some SOA parameters are discussed and designed to improve the performance. The operation of the proposed XNOR gate with 20Gb/s RZ pseudorandom bit sequences is simulated with fairly high performance.