  We study a non-typical excitation mode of the copper bromide active medium
using the kinetic model. The active medium is pumped by the pulse train and the
laser generation is obtained in the subsequent single excitation pulse. Such
mode allows one to obtain the laser generation pulse with the extended duration
by increase in the pause duration after the pulse train. The relaxation
processes during the pause are studied in order to explain such effect. It is
shown that this operation mode can also be used to obtain the superradiance and
amplification pulses of the extended duration that is of interest for active
optical systems. Based on the comparison with the experimental results, new
fundamental results are obtained regarding the copper bromide kinetics in the
active medium.
