Abstract
The transverse modulational instability (TMI) of two counterpropagating light waves in finite Kerr media is modeled by a pair of coupled nonlinear Schroedinger equations. This model predicts that transverse modulations in the wave amplitudes can be either convectively or absolutely unstable, in both self-focusing and self-defocusing media. In general, both frequency- and wavenumber-shifted sideband modes can grow if the wave intensities are unequal.
© 1991 Optical Society of America
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