Efficient polarization squeezing as a resource for quantum communication

We report on a novel and efficient source of polarization squeezing using a single pass through an optical fiber. Simply passing this Kerr squeezed beam through a carefully aligned λ/2 waveplate and splitting it on a polarization beam splitter, we find polarization squeezing of up to 5.1±0.3 dB. The experimental setup allows for the direct measurement of the squeezing angle.