https://doi.org/10.1140/epjd/e2003-00057-1
Feedback controlled periodic states for different kinds of photorefractive nonlinear response
1
International Institute for Nonlinear Studies, Koptyug Ave.
1, 630090 Novosibirsk, Russia
2
Department of Physics, University of Osnabrück, 49069
Osnabrück, Germany
Corresponding author: a mgorkoun@uni-osnabrueck.de
Received:
16
July
2002
Revised:
29
October
2002
Published online:
4
March
2003
We investigate analytically and numerically the influence of the
type of the photorefractive nonlinear response on the periodic
states (attractors) which occur during feedback controlled
2W-coupling and correspond to almost 
diffraction
efficiency of the dynamic index grating. In addition to the case
of the local response typical, for example, for LiNbO3 crystals
we consider the cases of nonlocal (diffusive) response (BaTiO3,
SBN) and resonant response (DC-biased BSO, BTO, and BGO crystals).
It is shown that the conditions for the transition to the periodic
states and their apparent characteristics are strongly different
for the two limiting cases above.
PACS: 42.65.Hw – Phase conjugation; photorefractive and Kerr effects / 42.40.Pa – Volume holograms / 42.65.Sf – Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
