Using the distinctive features of the photorefractive nonlinearity, we derive a general self-
consistent set of equations to describe two-wave coupling in the presence of fast and …

We show that a certain phase feedback between output and input changes dramatically the
characteristics of photorefractive two-beam coupling. The diffraction efficiency of the …

The introduction of certain electronic feedback loops into photorefractive wave-coupling
schemes makes them noise free and leads to dramatic changes of the whole nonlinear …

We obtain analytical solution to the slowly varying envelope wave equations describing two-
wave mixing in photorefractive crystals with arbitrary dependence of the gain and absorption …

We analytically solve the steady-state coupling equations of photorefractive two-wave
mixing with a rapidly phase modulated signal for an arbitrary complex coupling constant …

Optical multistability based on the theory of four-wave mixing (FWM) is considered for the
case of reflection geometry in photorefractive crystals. The resultant nonlinear algebraic …

Modulational instability in a photorefractive medium is studied in the presence of two-wave
mixing. We then propose and derive a model for forward four-wave mixing in the …

We report on the appearance of running transverse waves and zigzag instabilities in
photorefractive counterpropagating two-wave mixing with a single external feedback mirror …

We investigate the dynamics of multiple two-wave mixing in photorefractive materials. This is
the first time to our knowledge that a study of the dynamics of many pairs of two-wave mixing …

A theoretical and experimental study of the temporal response of photorefractive two-and
four-wave mixing processes is given. We examine the buildup and the decay of the output …