Interferometric schemes using forward phase conjugation in a ferroelectric photorefractive crystal

Forward phase conjugate waves have been generated by the 180 degree rotation of the holograms stored in photorefractive iron doped lithium niobate crystal. The holograms are formed by the two-wave mixing scheme either in transmission or in reflection geometry. Such a scheme is then extended to demonstrate the in-plane and out-of-plane displacement of the object wav