The non-degenerate polarized light quantum entanglement photon pair creation device which forms non-degenerate polarized light quantum entanglement photon opposite efficiently simply as for (1), the periodic polarization reversal structure (3a 3b) where period differs mutually the quantum entanglement photon opposite adult which possesses the single crystal which inside that was formed after passing (2) and periodic polarization reversal structure (3a), the light which passes periodic polarization reversal structure (3b) incidence it can point in the quantum entanglement photon opposite adult (2) the incident unit which to have (4), period of periodic polarization reversal structure (3a) and period of periodic polarization reversal structure (3b), periodic polarizationOn the basis of the light which incidence is done in reversal structure (3a) the parabola which shows the relationship between discharge angle and wave length of the polarized light photon which radiation is done and in periodic polarization reversal structure (3b) on the basis of the light which incidence is done in order to touch inside the range which the parabola which shows the relationship between discharge angle and wave length of the polarized light photon which radiation is done allow phase adjustable condition, it differs.
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