All-optical dibit-based Feynman gate using reflective semiconductor optical amplifier with frequency encoding scheme

In recent years, reversible gates have a great impact on optical nanotechnology, quantum and DNA computing. In the optical field, reversible gates like the Fredkin gate, Feynman gate, Toffoli gate, and Peres gate are very demanding due to their low power consumption. In this article, a novel design of Feynman gate using Add/Drop Multiplexer and Reflective Semiconductor Optical Amplifier (RSOA) is proposed. Frequency encoding scheme and dibit-based logic are incorporated in the proposed design. The Frequency encoding technique decreases the probability of bit error in long-range transmission. Due to the high gain and low noise property of RSOA, the proposed design can perform operations like computation and data processing at ultra-high speed with low noise. To verify the operation of the proposed design, we have used MATLAB Simulink (R2018a) software.