We report two-beam coupling experiments at 1.06-μm wavelength using photorefractive
semi-insulating GaAs: Cr in the moving-grating recording mode. The steady-state gain …

We report on the use of phase modulation in two-wave mixing with negative feedback to
record stabilized photorefractive running holograms with arbitrarily fixed phase shift between …

We present a new model, which incorporates both temperature and electron–hole effects, for
two-beam coupling in photorefractive semiconductors under an external dc field E_0. We …

Frequency shifts and dynamic instabilities in photorefractive cat self-pumped phase
conjugators and bridge mutually pumped phase conjugators are studied by use of a two …

A two-beam coupling interaction of an information-bearing beam with a copy of itself in a
photorefractive medium changes the spatiotemporal nature of the beam. We analyze the …

A mechanism for recording a static hologram in a photorefractive crystal in an externally
applied ac field is investigated. One beam is rapidly modulated, and the interference pattern …

The use of a fourth input beam in photorefractive four wave mixing systems is investigated.
This extra beam affects the local modulation index of the photoinduced grating structures …

The complete description of two-wave interaction in photorefractive crystals involves two
sets of differential equations: the materials equations and the field equations, although …

Dependence of photorefractive beam fanning on beam parameters Page 1 Optics
Communications 100 ( 1993) 166-l 72 OPTICS North-Holland COMMUNICATIONS …

The cross coupling of two mutually incoherent sources in photorefractive materials is
described. It is shown that when there are two mutually incoherent pump beams that are not …