In this paper, we focus on the features of a self-stabilized holographic recording system with
a photorefractive crystal as a vibration optical sensor. With it and the time-average …

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 …

An active stabilization of photorefractive two-wave coupling by means of an electronic
feedback loop has been used extensively during recent years in transmission geometry. It …

We report on a digital system for the stabilization of an interference pattern of light fringes.
This system uses a Raspberry Pi computer to operate a continuously stabilized setup and …

Doping ions and OH− groups absorption bands spatial profiles were investigated for the
case of congruent LiNbO 3 single crystal grown by Czochralski technique. Doping was …

We investigate analytically and numerically the influence of the type of the photorefractive
nonlinear response on the periodic states (attractors) which occur during feedback …

We investigate the spatial structure of dynamic index and light gratings which arise during
feedback-controlled photorefractive beam coupling with ultimate diffraction parameters. It is …

Certain feedback loops can be used in photorefractive optical schemes to implement
periodic states and create spatial gratings characterized by extremely high or low diffraction …

The usual phase-controlled two-beam coupling with heavily doped LiNbO 3 crystals leads to
the generation of periodic states, characterized by unitary diffraction efficiencies and strong …

Implementation of certain electronic feedbacks between the optical output and input is able
not only to stabilize the photorefractive setups against phase fluctuations, but also to shape …