Design and experimental investigation of magneto-optical waveguide logic gates for fiber-optic communication systems

The article presents the results of a study of the properties of magneto-optical waveguide logic gates designed for use in optical communication lines. Magneto-optical effects, and in particular the Faraday effect, are widely used not only as a tool for fundamental research into various properties of materials, but also find wide application in applied areas of modern instrument engineering. The use of optical waveguides for telecommunications purposes opens up the possibility of wider application of the magnetic properties of transparent materials due to their efficiency in modern devices designed for the transmission, processing, and storage of information based on new principles. Simple logical operations can be implemented by changing the states of photons in a substance under the influence of a modulating magnetic field. By changing the amplitude and orientation of the magnetic field relative to the direction of light propagation, selecting the orientation of the polarizer and analyzer, as well as the appropriate waveguide configuration, it is possible to design logic gates, including for cubic models that overcome the time constraints caused by the low coherence of optical qubits. It has been shown that the developed device can be successfully used for processing data over fiber-optic communication lines. The developed devices can serve as the basis for creating a wide range of information processing and transmission systems based on new principles as logic elements of devices with the ability to operate online in fiber-optic communication lines.

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