Mechanism for photorefractive phase conjugation using incoherent beams

Phase conjugation of mutually incoherent light beams in a photorefractive medium

Mutual phase conjugation of incoherent light beams in a photorefractive crystal

Theory of Photorefractive Phase Conjugators with Mutually Incoherent Beams

Mutually pumped phase conjugation of three incoherent beams with a novel photorefractive crystal

Photorefractive phase conjugation with orthogonally polarized pumping beams (A)

Photorefractive mutually pumped phase conjugation with partially coherent beams