Silicon Microring Resonator-Based All-Optical Reversible 2 : 1 Multiplexer: Numerical Analysis Sankarapuram Siva Saravana Kumar, Jakusani Shirisha, Sultan Mahaboob Basha, Kalimuddin Mondal, Vankadari Nagaraju, Alagar Raja, Manjur Hossain Optical Memory and Neural Networks Information Optics, 2025 Abstract Future computing systems will likely require reversible logic gates since, in the best of circumstances; they are known to provide zero power dissipation. Reversible logic gates also have the advantage of minimizing quantum costs and unused outputs. In this work, reversible 2 : 1 multiplexer has been implemented using all-optical microring resonator. Reversible multiplexer is simulated in MATLAB at 260 Gbps. Some performance indicating factors such as “extinction ratio”, “contrast ratio”, “relative eye opening”, etc are analyzed and developed. The chosen optimal parameters can be validated practically.
Design of All-Optical Ternary Inverter and Clocked SR Flip-Flop Based on Polarization Conversion and Rotation in Micro-Ring Resonator Madan Pal Singh, Jayanta Kumar Rakshit, Kyriakos E. Zoiros, Manjur Hossain Photonics, 2025 In the present study, a polarization rotation switch (PRS)-based all-optical ternary inverter circuit and ternary clocked SR flip-flop (TCSR) are proposed and discussed. The present scheme is designed by the polarization rotation of light in a waveguide coupled with a micro-ring resonator (MRR). The proposed scheme uses linear polarization-encoded light. Here, the ternary (radix = 3) logical states are expressed by the different polarized light. PRS-MRR explores the polarization-encoded methodology, which depends on polarization conversion from one state to another. All-optical ultrafast switching technology is employed to design the ternary NAND gate. We develop the ternary clocked SR flip-flop by employing the NAND gate; it produces a greater number of possible outputs as compared to the binary logic clocked SR flip-flop circuit. The performance of the proposed design is measured by the Jones parameter and Stokes parameter. The results of the polarization rotation-based ternary inverter and clocked SR flip-flop are realized using a pump–probe structure in the MRR. The numerical simulation results are confirmed by the well-known Jones vector (azimuth angle and ellipticity angle) and Stokes parameter (S1, S2, S3) using Ansys Lumerical Interconnect simulation software.
Design and Analysis of Compact All-Optical XOR and XNOR Gates Employing Microring Resonator Manjur Hossain Optical Memory and Neural Networks Information Optics, 2025 Abstract The manuscript includes the analysis and implementation of compact XOR and XNOR gates all-optically using microring resonator. Research on simultaneous logic and its inverse operation in a single circuit is crucial and productive in the field of optical computing. In addition, energy-efficient circuits are becoming more and more crucial. XOR and XNOR logic gates are designed and analyzed at about 260 Gbps using MATLAB. The same design has also been verified by “Ansys Lumerical finite difference time domain (FDTD)” software. Footprint of the FDTD design is only 47.7 μm × 18.8 μm. This proposed XOR and XNOR are particularly useful for digital signal processing because of its small architecture and faster response times. The evaluation and analysis of a few performance-indicating variables includes “extinction ratio”, “contrast ratio”, “amplitude modulation”, “on-off ratio”, and “relative eye opening”. Optimized design parameters are chosen to implement the design experimentally.
Analysis and design of all-optical 1-bit binary full adder employing microring resonator Optoelectronics and Advanced Materials Rapid Communications, 2025
