MATHEMATICAL SIMULATION OF PROPAGATION OF LIGHT

Abstract

The article refers to the upgrading of elementary components of optoelectronics. The authors use the theory of waveguides and mathematical simulation of wave processes in planar multilayer wave conductor to calculate the correlation between parameters of optical devices and the quality of their fabrication. The propagation constant b is defined by solving of a set of equations and by finding a dispersion relation with the help of MathCad. The simulation proves that the reflection factor of wave conductor, which is equal to relation between the energy of electric field in the cladding and the energy in the core, depends on the wave length. The study on the field of a waveguide in a cross section permits to find optimum parameters (N , nj) of a waveguide to reduce losses in the cladding. The results give the opportunity to assess the outlooks for resolving capacity of manufacturing technology for multilayer structures which are elementary components for semiconductor devices, especially for the structures less than 100 nm (low-dimensional and quantum structures).