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Free keywords:
OPTICAL BLOCH OSCILLATIONS; DISCRETE SOLITONS; FIBER ARRAYS;
LASER-PULSES; GENERATION; DYNAMICS; LATTICES; COLLAPSE; ENERGY; ANALOGOptics; Physics;
Abstract:
We study the formation and the dynamics of spatially broad light bullets generated in silica waveguide arrays. We show that these bullets are metastable even in the presence of high-order dispersion, coupling dispersion, and the Raman effect and can be approximated by the hyperbolic secant function with a high degree of accuracy. We also investigate the formation of narrow light bullets which are spatially localized in only a few adjacent waveguides and short in time. We reveal that the latter are extremely robust even in the presence of the Raman effect.
