Spatial solitons in second-harmonic generation show regular, high-frequency, temporal modulation 1.5-times above threshold. The result is interpreted as the first observation of their temporal modulational instability. Simulations indicate that instability is seeded by quantum noise.
© 2004 Optical Society of America
P. Di Trapani, G. Arrighi, J. Yu, G. Valiulis, and S. Minardi, "Temporal modulational instability of spatial solitons in second-harmonic generation," in Nonlinear Guided Waves and Their Applications, Technical Digest on CD (Optical Society of America, 2004), paper WA5.
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