Implementation of an optical universal one-bit arithmetic logical circuit for high-speed processing combinational circuits

Arithmetic logic circuit (ALC) is the basic need of any combinational circuits but traditional digital circuits have limitations in terms of switching speed and power loss. In this paper, we have implemented an optical universal one-bit ALC by utilizing the electro-optic effect of Titanium-diffused lithium niobate (Ti-LiNbO3) based Mach–Zehnder interferometers for high-speed processing combinational circuits. The extinction ratio of proposed design is highest for a 1-bit multiplier, which is 10.10 dB, and insertion loss of 0.362 dB is achieved for borrow logic. The beam propagation method has been used for the modeling and simulation of the proposed design at 1330 nm wavelength. Mathematical computation has been done for the proposed structure and further results were verified by MATLAB simulation.

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