Stable oscillating nonlinear beams in square-wave-biased-photorefractives
G. M. Tosi-Beleffi, M. Presi, C. Palma, D. Boschi, E. DelRe, A. J. Agranat
Abstract
We demonstrate experimentally that in a centrosymmetric paraelectric non-stationary 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.
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