Abstract
Since the first demonstration of spatial solitary waves in a quadratic nonlinear optical material, such materials have been studied for potential all-optical applications.1 These solitary waves occur above a certain threshold power at which the second harmonic and fundamental waves strongly couple and propagate through the medium without lateral displacement resulting from walk-off or diffraction.2 Potential applications of solitary wave formation include efficient beam cleanup of badly distorted spatial profiles.
© 1996 Optical Society of America
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