Abstract
The interaction of rectangular light beams is studied in a SBN crystal of 2 cm length. It is shown that two beams with a rectangular cross section of 30 × 30 μm 2 and with a distance of 60 μm between them, oriented perpendicular to an external electric field E 0 = 3 kV/cm fuse into one beam. The same beams arranged parallel to the external electric field do not fuse. It is found that using the diffusion term of the potential equation we can explain the asymmetric behavior of the light beams, which are arranged parallel to the external electric field. It is observed that using four propagating beams leads to stabilization of the quasi-soliton formation.
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