A novel all optical method of implementing an n-bit wavelength encoded complete digital data comparator using nonlinear semiconductor optical amplifiers

Semiconductor Optical Amplifier Based Frequency Encoded Logic Gates Exploiting Nonlinear Polarization Rotation Only

“…In this communication three fundamental logic gate NOT, OR and AND gates are proposed and their performance is analyzed in terms of power input and power output. Unlike other polarization rotation based proposals 17,[30][31][32] (where other phenomena with polarization rotation is used), in this present communication only polarization rotation is used.…”