Newly designed modified trinary-valued logic gates using SLM-based Savart plate

Abstract

Multivalued optical logic shows immense promise in modern computing systems with several advantages like ultrahigh computational speed, large amount of data handling capability and high data density. The logic gates are building blocks of computational systems, and all the logic circuits can be realized by cascading different logic gates. This paper proposes a new set of designs for existing logic gates in the Modified Trinary Number system with more efficiency and less complexity. The newly designed gates enable direct cascading of multiple gates and require lesser number of SLMs and Savart plates for realization, hence greatly reducing the circuit complexity of larger circuits. The Optical Tree Architecture of these new logic gates is realized using Spatial Light Modulators (SLM) and Savart plates. Moreover, a comparative study between the newly designed gates and existing gates is also incorporated to demonstrate the reduction in SLMs and Savart plates in the newly developed designs.