Abstract: A high-luminance quantum correlation photon beam generator in which a laser light source (1) emits a laser pumped light and a parametric crystal (2) generates a pair of two photons of a signal photon and an idler photon on receiving the pumped light to emit two photon beams. Further, a beam splitter (5) splits a signal photon beam (6) from an idler photon beam (7), a mode inverter (10) rotates one of the signal photon beam, (6) and the idler photon beam (7) 180° around its geometric center, a phase adjusting means (8) adjusts phases of the signal photon beam (6) and the idler photon beam (7) based on an optical time delay, and a beam coupling means (14) overlays the signal photon beam (6) with the idler photon beam (7) in a common-line polarized annular shape by the mode inverter (10) to bring them into a quantum correlated state.

Abstract: A high-luminance quantum correlation photon beam generator a photon beam of a quantum correlated pair characterized by includes: a laser light source (1) operable to emit a laser pumped light; a parametric crystal (2) operable to generate a pair of two photons of a signal photon and an idler photon on receiving the pumped light from the laser light source (1) to emit two photon beams along two non-concentric cones; a beam splitting means (5) operable to split a signal photon beam (6) from an idler photon beam (7); a mode inverter (10) operable to rotate one of the annular signal photon beam (6) and the idler photon beam (7) 180° around its geometric center; a phase adjusting means (8) operable to adjust phases of the signal photon beam (6) and the idler photon beam (7) based on an optical time delay; and a beam coupling means (14) operable to overlay the signal photon beam (6) with the idler photon beam (7) in a common-line polarized annular shape by the mode inverter (10) to bring them into a quantum correla