  Quadrature squeezed cylindrically polarized modes contain entanglement not
only in the polarization and spatial electric field variables but also between
these two degrees of freedom [1]. In this paper we present tools to generate
and detect this entanglement. Experimentally we demonstrate the generation of
quadrature squeezing in cylindrically polarized modes by mode transforming a
squeezed Gaussian mode. Specifically, -1.2 dB of amplitude squeezing are
achieved in the radially and azimuthally polarized mode. Furthermore,
theoretically it is shown how the entanglement contained within these modes can
be measured and how strong the quantum correlations, depending on the
measurement scheme, are.
