METHOD OF DEVELOPING ALL OPTICAL HALF-ADDER BASED ON NONLINEAR DIRECTIONAL COUPLER

Abstract

The transfer of light energy from one wave guide to another due to direct coupling mechanism can be used as a directional coupler switch. Several all optical switching operations have already been proposed by scientists and technologists. In this paper we report the advantageous aspects of nonlinear coupling mechanisms for developing all optical half-adder systems. The basic principle behind this optical switch is the reduction of coupling length due to the nonlinear interaction of the wave guide with the intensity.