Realization of 4 bit optical logic shifter circuit using 4?1 multiplexer

This article presents the 4×1 multiplexer (MUX) by using two GaAs-AlGaAs based optical micro ring resonator (OMRR). The proposed structure of 4×1 MUX is further used as 4 bit optical logic shifter circuit. These models are exploiting the non-linear property of OMRR which enables it to act as an optical switch. The performance of 4 bit logic shifter circuit is analyzed and simulated by using Z-domain modeling in Matlab.