Pulse Signal Propagation in Bragg-Type Layered Structures

Abstract

Propagation of sinc(x), Gaussian, Lorenz, and exponential time pulses in Bragg reflectors, resonators with walls in the form of Bragg reflectors is under consideration. The influence of the number of layers in elements of the structure on the form of pulse is studied. The analysis is done in the comparison with properties of the structure in frequency domain including behavior of zeros of frequency characteristic. Influence of properties of zeros and minimal-phase characteristics on negative group delay manifestation is revealed. The application of exponential approximation of time-domain signals is investigated.