  We have built a compact light source for bright squeezed twin-beams at
795\,nm based on four-wave-mixing in atomic $^{85}$Rb vapor. With a total
optical power of 400\,mW derived from a free running diode laser and a tapered
amplifier to pump the four-wave-mixing process, we achieve 2.1\,dB intensity
difference squeezing of the twin beams below the standard quantum limit,
without accounting for losses. Squeezed twin beams generated by the type of
source presented here could be used as reference for the precise calibration of
photodetectors. Transferring the quantum correlations from the light to atoms
in order to generate correlated atom beams is another interesting prospect. In
this work we investigate the dispersion that is generated by the employed
four-wave-mixing process with respect to bandwidth and dependence on probe
detuning. We are currently using this squeezed light source to test the
transfer of spatial information and quantum correlations through media of
anomalous dispersion.
