A self-pumped forward phase-conjugate mirror based on nonlinear wave mixing in
photorefractive media is demonstrated. A single input beam to a BaTiO_3 crystal excites an …

We present a new approach to measure the phase shift between the photorefractive grating
and the interference pattern in two-wave-mixing experiments. This approach is based on …

We analyze the phase-conjugate reflectivity and the amplification property of cross-polarized
four-wave mixing with a photorefractive BaTiO_3 crystal in consideration of the pump-beam …

Photorefractive light amplification by forward four-wave mixing in BaTiO3 - ScienceDirect Skip
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The large optical nonlinearities of many photorefractive crystais, which can be induced by
moderate light intensities, were the prosperous ground for intensive and diverse activities. I …

The fidelity of optical phase conjugation resulting from photorefractive degenerate four‐
wave mixing in barium titanate was investigated using an interferometric technique. The …

Résumé La dépendance entre le champ électrique et l'écartement des franges du transfert
d'énergie stationnaire entre deux faisceaux traçants lors de la formation en volume d'un …

We propose a method to obtain higher phase-conjugate reflectivity by using a pulsed pump
beam as the reading beam. A qualitative explanation of our method is given. Then we …

Two optical beams can couple in a photorefractive crystal without using the electro-optic
effect. Beam coupling is due to a spatially modulated absorption caused by the …

Photorefractive materials have been used for demonstrating optical phase conjugation in a
wide variety of configurations. 1 A self-pumped photorefractive phase conjugator using …