  The growth of striped order resulting from a quench of the two-dimensional
Swift-Hohenberg model is studied in the regime of a small control parameter and
quenches to zero temperature. We introduce an algorithm for finding and
identifying the disordering defects (dislocations, disclinations and grain
boundaries) at a given time. We can track their trajectories separately. We
find that the coarsening of the defects and lowering of the effective free
energy in the system are governed by a growth law $L(t)\approx t^{x}$ with an
exponent x near 1/3. We obtain scaling for the correlations of the nematic
order parameter with the same growth law. The scaling for the order parameter
structure factor is governed, as found by others, by a growth law with an
exponent smaller than x and near to 1/4. By comparing two systems with
different sizes, we clarify the finite size effect. We find that the system has
a very low density of disclinations compared to that for dislocations and
fraction of points in grain boundaries. We also measure the speed distributions
of the defects at different times and find that they all have power-law tails
and the average speed decreases as a power law.
