Analysis of new all optical polarization-encoded Dual SOA-based ternary NOT & XOR gate with simulation

Design and performance of all optical ternary NOT & XOR gate using the Dual semiconductor optical amplifier (SOA)-based technology is investigated. The basic principal behind the operation of these logic gates is nonlinear cross-polarization modulation (XPolM) effect in SOA. Optical NOT gate is universal logic gate, and optical XOR gates are very useful in designing higher order optical devices like flip-flops, parity checker and generator circuits, etc. The Q-value of the design is greater than 50 dB maintaining high operational speed (~ 100Gbit/s) ensures negligible bit error rate. Numerical simulation using MATLAB ensures CR values more than 55 dB and ER values more than 50 dB. These high values ensure practical feasibility of the proposed devices. The large relative eye opening(> 94%) ensures clear transmissions of the information.