  The noise power spectra of spatially extended dynamical systems are
investigated, using as a model the Complex Ginzburg-Landau equation with a
stochastic term. Analytical and numerical investigations show that the spatial
spectra of the ordered state are similar to Bose-Einstein distribution, showing
1/k^2 asymptotics in the long wavelength limit. The temporal noise spectra of
the ordered state are obtained of 1/^alpha form, where alpha=2-D/2 with D the
spatial dimension of the system.
