  We describe a method for measuring the Berry curvature from the wave-packet
dynamics in perturbed arrays of evanescently coupled optical waveguides with
honeycomb lattice structure. To disentangle the effects of the Berry curvature
and the energy dispersion we utilize a difference measurement by propagating
the wave packet under the influence of a constant external force back and
forth. In this way a non-vanishing Berry curvature is obtained for photonic
graphene with small sublattice bias or strain, where the relative error between
the exact Berry curvature and the one derived from the semiclassical dynamics
is negligible. For the strained lattice we demonstrate the robustness of the
Berry curvature texture over the Brillouin zone compared to the energy
dispersion. We also comment on the experimental realization of the proposed
Berry curvature mapping in photonics.
