Patent ID: 6744518
Filing Date: 2004-06-01
Classification: G02B,G02F

Abstract:
A method, comprising: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 by directing a first of the two spatially resolved portions of the beam of multi-color entangled photons toward a mirror and directing a second of the two spatially resolved portions of the beam of multi-color entangled photons toward a mixer, wherein the first of the two spatially resolved portions of the beam of multi-color entangled photons is reflected by the mirror toward the mixer and mixed with the second of the two spatially resolved portions of the beam of multi-color entangled photons by the mixer to define the converged multi-color entangled photon beam; changing a phase of at least a portion of the converged multi-color entangled photon beam to generate a first interferometeric multi-color entangled photon beam; and combining the first interferometric multi-color entangled photon beam with a second interferometric multi-color entangled photon beam within a single beamsplitter.