Optical Binary Adder Gate modeling using optical digital IC

Abstract

Logic devices and gates perform an essential part in modern electronics and integrated circuits. Recently, all optical logic gates in addressing, switching, encryption, data encryption, signal reconstruction, have given significant importance in their applications in optical communication networks. In recent years, various designs have been introduced for the design of all optical logic gates based on linear light effects, such as interference, semiconductor optical amplifier (SOA), and Mach Zehnder interferometer (MZI) and processes. Logic gateways are capable of performing many logical functions and have numerous applications in optical communications such as logic gateways for address recognition, correction and data integrity verification, and are also used as a sampling gateway in optical sampling oscilloscopes. In this paper, all the designs are based on triangular two-dimensional simulations. In the proposed design, a ring consisting of several waveguides and port A and port B are considered as inputs. The output leaves the structure through the output waveguide. To design logic gates, we calculate all the optical transitions for the desired structure for the possible modes for the OR logic gate. Then, by selecting the optimal point for a / λ and considering λ = 1.55 µm, we design the logical gate of the idea. By applying the radius in the previous step and simulating the structure of the electromagnetic field distribution, we obtain the part. Which indicates the realization of the desired gate.