Design and performance evaluations with optical comparator link

This article presents performance investigation of the proposed high speed optical comparator network. Execution for inputs data A and data B, the equivalence (A = B), less than (A < B) and greater than (A > B) operations have been realized through separate branches accompanying semiconductor optical amplifier. By exploiting nonlinear attribute the cross gain modulation with semiconductor optical amplifier. Accordingly, output logic patterns have been verified at 20 Gbps data rate for different input permutations with good Q-factor performance. Numerical investigation for key design parameters have been appropriately demonstrated with good extinction ratio (>10 dB) performance for the variation of data rates (2-20 Gbps), laser power, pump current and modulator bias voltage (0.72 V). This exploration inferred that projected schematic could be one of competent scheme for upcoming all-optical computing operations, as it excludes expensive optoelectronic translation.