Effect of aperture losses on the accuracy of hitting a remote object by radiation reflected from a PC mirror

It is shown experimentally that when phase conjugation (PC) methods are used for self-directing laser radiation to remote objects, the fraction of laser radiation hitting the object amounts to 80% ± 10% of the total energy reflected from a PC mirror, and in most cases depends weakly on the degree of atmosphere turbulence and the path length despite considerable aperture losses.