Abstract
Based on Maxwell's equations, an effective wave equation for the vector-potential of the electric field of the pulse is obtained. A computer simulation of the evolution of an optical pulse with a duration of several femtoseconds in a medium with a spatially variable refractive index based on a superlattice has been carried out. The system is placed in a cylindrical optical resonator. It has been established that optical pulses propagating in such a system retain their energy in a limited region of space. Numerical simulation of the dynamics of optical pulses was carried out at long times (up to 100 ps).
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