Electro-optic 2:1 Reversible MUX based on Ti diffused Lithium Niobate MZI

Abstract

Multiplexers play a vital role in data selection when higher number of inputs are available in application like telephone networks, computer memories and communication systems etc. Though design using conventional CMOS has progressed to the point where it can now pick data at a considerably faster rate, it suffers from a drawback of heat dissipation and uncertainty during downscaling of technology. Reversible design has been evolved as a potential solution to heat dissipation and optical computing, due to its inherent ultrahigh-speed it paves the way as one of the alternatives to CMOS. Electro-optic switches are emerged to configure various reversible logics such as Fredkin, Optimized Fredkin, Modified Fredkin and Feynman gate etc. This paper explores the design of a new 2:1 reversible MUX (RMUX) using Ti: LiNbO3 based MZI. The beam propagation method is used to simulate the design and the power modelling of it is validated through MATLAB simulation. Thereafter, a parametric analysis is also made in terms of asymmetry and electrode width to verify the satisfactory functionality of the RMUX.