We describe how optical beams from a mode-locked laser will couple in a photorefractive
crystal. We show that the two-beam-coupling gain coefficient is proportional to the square of …

Photorefractive wave mixing in a waveguide geometry with nonguided external pumps has
been studied experimentally and theoretically. Guided beam amplification has been …

We investigate the mutually pumped phase-conjugation process in photorefractive media
with partially coherent pump beams. We consider the effects of transmission, reflection, and …

The dynamics of a composite grating that consists of an original grating and a newly
superimposed grating are investigated for memory applications by solution of coupled-wave …

We present a two-beam coupling configuration in photorefractive BaTiO_3 that provides a
low-noise amplification of the signal to be detected. A two-wave mixing gain of 100 is …

Signal Pump Page 1 Slowing Down of Light in Photorefractive Crystals with Beam Intensity
Coupling Reduced to Zero A. Shumelyuk,1 K. Shcherbin,1 S. Odoulov,1 B. Sturman,2 E …

We examine simultaneous write–read of dynamic photorefractive gratings for arbitrary phase
shifts between index grating and intensity pattern. The nonlinear behavior of diffraction …

We present a simple shooting method to obtain numerical solutions of the nonlinear coupled-
wave equations for degenerate four-wave mixing in photorefractive crystals when four …

The photorefractive recording dynamics of two-beam coupling in semi-insulating
semiconductors by beams with slightly different frequencies are studied theoretically and …

A theoretical analysis is presented of two-wave mixing in photorefractive materials in which
the complex amplitude of a weak signal beam has slowly varying but otherwise arbitrary …