Abstract
We show numerically that, contrary to what has been believed so far,
multidimensional optical solitons can propagate in cubic nonlinear media. To
avoid a collapse along the propagation axis, we take advantage of the
cross-phase modulations between fundamental- and harmonic-field components. A
compact analytical expression for new solitonlike fields with an arbitrary
transverse dimension is derived through a self-consistent-field
approximation.
© 1994 Optical Society of America
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