All-optical devices are proven to have broad range of applications in the areas of communication. These devices form the basic building blocks of complex integrated circuits. By integrating these devices in the elds like signal processing, chip designing and network computations, a much more e cient device can be achieved. The design of all-optical logic gates like NAND, NOR and XNOR using plasmonic based Y-shaped power combiner is implemented in this paper work. The concept of linear interference is applied in the combiner to achieve the desired logic gates. The work is simulated and analysed using Finite-Difference Time Domain (FDTD) method, which is valuated using MATLAB. The present work ts under the area of 60 µm 2 which is smaller than the existing structures. The insertion loss, transmission e ciency and extinction ratio parameters are calculated and compared to variety of other designs.

All-optical logic gates have proven their significance in the digital world using which all high-speed computations are calculated. In this paper, we have proposed a novel structure for all-optical AND using the concept of power combiner using Y-shaped metal-insulator-metal waveguide under the footprints of 4 µ𝑚 × 7 µ𝑚. This design works under the principle of linear interference. The insertion loss and extinction ratio of the design are given by 0.165 dB and 14.11 dB, respectively. The analysis of the design is carried out by finite-difference-time-domain (FDTD) method and verified using MATLAB. This minimized structure can be used to design any complex logic circuits to achieve better performance in future.

All-optical devices are proven to have broad range of applications in the areas of communication. These devices form the basic building blocks of complex integrated circuits. By integrating these devices in the fields like signal processing, chip designing and network computations, a much more efficient device can be achieved. The design of all-optical logic gates like NAND, NOR and XNOR using plasmonic based Y-shaped power combiner is implemented in this paper work. The concept of linear interference is applied in the combiner to achieve the desired logic gates. The work is simulated and analysed using Finite-Difference Time Domain (FDTD) method, which is valuated using MATLAB. The present work fits under the area of 60 µm2 which is smaller than the existing structures. The insertion loss, transmission efficiency and extinction ratio parameters are calculated and compared to variety of other designs.

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