Abstract

Quantum entangled light pulses are basic requisites for quantum communication systems. A realisation using optical fibre solitons is presented. It is straight forward to extend the experimental set-up for the detection of quantum phase correlations of the two entangled beams to demonstrate quantum dense coding. The scheme can also be interpreted as a squeezed light interferometer with two intense amplitude squeezed beams at the two input ports resulting in an enhancement of the interferometric sensitivity corresponding to the degree of squeezing.

© 2001 EPS