Design and Simulation of All-optical 2×2-Bit Reversible Multiplier Using RSOA-Based Switches

Abstract

This work presents the design and simulation of an all-optical 2×2-bit reversible multiplier utilizing switches based on Reflective Semiconductor Optical Amplifiers (RSOAs). The architecture exploits the inherent gain saturation and double-pass reflection characteristics of RSOAs to realize reversible logic operations, specifically XOR and AND gates. A comprehensive theoretical analysis is provided, along with numerical simulations assessing key performance indicators such as Extinction Ratio (ER), Quality Factor (Q), and Relative Eye Opening (REOP). Simulation results validate the functional correctness and efficiency of the proposed design, demonstrating its potential for high-speed, low-power optical computing systems.