The influence of the normal group-velocity dispersion on anisotropic self-focusing beams in nonlinear Kerr media is studied analytically. It is shown that a light pulse self-focusing in the presence of normal dispersion is split up into several small-scale cells preventing a catastrophic collapse. The theoretical explanation of this splitting process is revealed. {} 1996 The American Physical Society.
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Bergé et al. (1996) studied this question.
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