Trinary arithmetic and logic unit (TALU) using savart plate and spatial light modulator (SLM) suitable for optical computation in multivalued logic

Arithmetic logic unit (ALU) is the most important unit in any computing system. Optical computing is becoming popular day-by-day because of its ultrahigh processing speed and huge data handling capability. Obviously for the fast processing we need the optical TALU compatible with the multivalued logic. In this regard we are communicating the trinary arithmetic and logic unit (TALU) in modified trinary number (MTN) system, which is suitable for the optical computation and other applications in multivalued logic system. Here the savart plate and spatial light modulator (SLM) based optoelectronic circuits have been used to exploit the optical tree architecture (OTA) in optical interconnection network.

► Arithmetic logic unit (ALU) is the most important unit in any computing system. ► Operations like addition, subtraction, logical and others also possible using TALU. ► Here we have implemented TALU with 9 and 27 operations. ► The operations may be increased to any numbers by introducing more selection lines. ► TALU system is also advantageous for the VLSI implementations.