Stable oscillating nonlinear beams in square-wave-biased photorefractives

Abstract:

We demonstrate experimentally that, in a paraelectric, nonstationary boundary conditions can dynamically halt the intrinsic instability of quasi-steady-state photorefractive self-trapping, driving beam evolution into a stable oscillating two-soliton-state configuration. (C) 2000 Optical Society of America OCIS codes: 190.5330, 230.3090.