  Stochastic (Anderson) localization is the spatial localization of the
wave-function of quantum particles in random media. We show, that a
corresponding phenomenon can stabilize spatial solitons in optical resonators:
spatial solitons in resonators with randomly distorted mirrors are more stable
than in perfect mirror resonators. We demonstrate the phenomenon numerically,
by investigating solitons in lasers with saturable absorber, and analytically
by deriving and analyzing coupled equations of spatially coherent and
incoherent field components.
