  A high degree of chaos synchronization among transverse mode pairs with
parity-symmetric polarizations was demonstrated in a laser-diode pumped
thin-slice c-cut Nd: GdVO4 laser. The amplitude correlation coefficient greater
than R > 0.994 resulted from a non-reversing mirror
symmetric-polarization-dependent structural change in the modal patterns, where
chaotic dynamics of the whole system consisting of qualitatively different
dynamics, which depend on the polarization crossing angle, resembled that of a
chaotic single mode laser. A self-organized sender-receiver type of chaos
synchronization of a single pair of modes among an infinite number of
parity-symmetric polarizations and the associated chaotic camouflaging as well
as extracting experiment of a self-mixing solid-state laser Doppler velocimetry
signal were demonstrated.
