Understanding of signal conversion using magnetic photonic structure for optical communication system

The present paper explains signal conversion using a magnetic photonic structure at various optical bands, which will be employed in optical communication systems. The spectral bands discussed, include the Original, Extended, Short, Conventional, Long, and Ultra Long Wavelength bands (OESCLU). The proposed photonic structure manipulates Tin sulphide (SnS) magnetic crystals. The structure is composed of SnS as the background material, with an etching of 5 × 5 air holes. The mechanism of signal conversion covers a wide range of wavelengths, from 1260 to 1675 nm. The physics of the work relies on the nature of the materials, the structure, and the configuration of the proposed device, while the mathematics is based on the plane wave expansion technique. The principle of signal conversion involves the phenomenon of nonlinearity. For example, the structure is designed to generate three wavelengths corresponding to a single wavelength. A signal of 1370 nm from the extended band, for instance, generates three distinct wavelengths: 5080 nm, 28889 nm, and 195028 nm, which fall into the categories of Mid-infrared and Far Infrared. The outcomes of the present study reveal that three different infrared signals are generated corresponding to a single input wavelength.