Abstract

We show analytically the existence of nondegenerate symbiotic solitary waves in quadratic media with absorption losses. We study these new solitary waves in the particular case of a backward quasi-phase-matching configuration. Our numerical simulations reveal that, when it is used inside a singly resonant optical parametric oscillator, this configuration leads to the spontaneous formation of new solitary waves.

© 1998 Optical Society of America

Quadratic solitary waves in a counterpropagating quasi-phase-matched configuration

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Stable coupled conjugate solitary waves in optical fibers

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Spatial solitary waves and patterns in type??II second-harmonic generation

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