All Optical Implementation of MachZehnder Interferometer based Reversible Sequential Counters

All Optical Implementation of Mach-Zehnder Interferometer based Reversible Sequential Counters


This work presents all optical reversible implementation of sequential counters using semiconductor optical amplifier (SOA) based Mach-Zehnder interferometer (MZI) switches. All the designs are implemented using minimum number of MZI switches and garbage outputs. This design ensures improved optical costs in reversible realization of all the counter circuits. The theoretical model is simulated to verify the functionality of the circuits. Design complexity of all the proposed memory elements has been analyzed.


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