Abstract
Abstract This paper come across with the design of all optical logic gates OR, AND, NOT, NOR, XNOR and NOT at ultra high speed by using SOA (semiconductor optical amplifier). All logic gates are obtained by principle of XGM (cross gain modulation) and FWM (four wave mixing) in SOA at 160 Gbps. The OR, AND, NOR logics of two data sources are obtained by using additional pump signal, while XNOR logic is obtain by using two data sources with combined effect of four wave mixing and cross gain modulation. The NOT is obtained by using a pump signal along with the one data source with cross gain modulation effect. Thus realization of these logics at 160 Gbps will lead to revolutionary growth in optical signal processing for various high speed operation applications.
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