INTERFEROMETRIC SOURCE OF MULTI-COLOR, MULTI-BEAM ENTANGLED PHOTONS

摘要

Systems and methods are described for an interferometric source 500 of multi-color, multi-beam entangled photons. A method includes: downconverting a beam of coherent energy to provide a beam of multi-color entangled photons converging two spatially resolved portions of the beam of multi-color entangled photons into a converged multi-color entangled photon beam changing a phase of least a portion of the converged multi-color entangled photon beam to generate a first interferometric multi-color entangled photon beam and combining the first interferometric multi-color entangled photon beam with a second interferometric multi-color engtangled photon beam within a single beamsplitter 588. An apparatus includes: a multi-refringent device 900 optically coupled to a source of coherent energy 503, the multi-refringent device 900 providing a beam of multi-color entangled photons a condenser device 951, 961 optically coupled to the multi-refringent device the condenser device 951, 961 converging two spatially resolved portions of the beam of multi-color entangled photons into a converged multi-color entangled photon beam a tunable phase adjuster 747 optically coupled to the condenser device 951, 961, the tunable phase adjuster 747 changing a phase of at least a portion of the converged multi-color entangled photon beam to generate a first interferometric multi-color entangled photon beam and a beam splitter 588 optically coupled to the condenser device 951, 961, the beam splitter 588 combining the first interferometric multi-color entangled photon beam with a second interferometric multi-color entangled photon beam.