  We study three-dimensional optical Anderson localization in medium with a
percolating disorder, where the percolating clusters are filled by the light
nanoemitters in the excited state. The peculiarity of situation is that in such
materials the field clusters join a fractal radiating system where the light is
both emitted and scattered by the inhomogeneity of clusters. Our numerical FDTD
simulations found that in this nonlinear compound the number of localized field
bunches drastically increases after the lasing starts. At longer times the
bunches leave nonlinear percolating structure and are radiated from the medium.
Monitoring the output of system allows to observe experimentally such dynamic
localized bunches in three-dimensional setup.
