XNOR Optical Logic Gates in Mach-Zehnder Waveguide of Tin Oxide Nanomaterial

New parameters for Mach-Zehnder optical waveguide had been modelled using the Finite Difference Beam Propagating Method (FD-BPM). The waveguide contains parameters of high refractive index nanomaterial Tin Oxide, considered Kerr-type nonlinear optics material. The core of the guide part was built in by the refractive index parameter of thin film nanomaterial tin oxide of 2,2735 that had been fabricated in previous research. At the same time, the cladding was established by the thin oxide doped with an index contrast of 0,005. The waveguide generates XNOR optical logic gate due to the material's nonlinearity effect and the waveguide structure's coupling effect. The optical logic gate function was generated using a low-power input signal. The waveguide structure also has a more comprehensive guide part parameter to ease the fabrication and input signal coupling. It indicated that the waveguide could be considered a lowenergy optical device for future telecommunication technology.