Abstract

We discuss the dynamics of fundamental Gaussian beams launched in saturable and nonlocal nonlinear media. Solely in the presence of a self-focusing saturable nonlinearity, the breathing solitons undergo strong deformation. The addition of a defocusing nonlinearity leads to the generation of couples of solitons. Experimentally, we demonstrate in nematic liquid crystals the formation of multiple spatial solitons starting from a bell-shaped input, with both direction and the number of filaments depending on the input power, confirming the theoretical predictions.

© 2019 Optical Society of America

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Supplementary Material (4)

NameDescription
» Visualization 1       Video of temporally unstable soliton propagation when the input power is 25 mW and the applied voltage is 2 V. Input wavelength is 1064 nm and the input beam width is about 4 microns.
» Visualization 2       Video of the soliton splitting when the input power is 10 mW and the applied voltage is 3 V. Input wavelength is 1064 nm and the input beam width is about 4 microns.
» Visualization 3       Video showing the formation of three solitons when the input power is 26 mW and the applied voltage is 3 V. Input wavelength is 1064 nm and the input beam width is about 4 microns.
» Visualization 4       Video showing the formation of multiple interacting solitons when the input power is 61 mW and the applied voltage is 3 V. Input wavelength is 1064 nm and the input beam width is about 4 microns.

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Figures (7)

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Equations (3)

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