EXPERIMENTAL DEMONSTRATION OF QUADRATURE ENTANGLEMENT USING LASER PULSES

摘要

We report the generation of pulsed squeezed light from a degenerate optical parametric amplifier (OPA). With a single pass through OPA, the noise reduction of 2.0 dB below the shot noise limit is observed. The entanglement is obtained by combining two pulsed squeezed state with a beam splitter. The quantum correlation of -0.5 dB between two entanglement beams was measured.