Stabilization of dark and vortex parametric spatial solitons

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Optical Sciences Centre, Res. Sch. of Phys. Sci. and Eng., Australian National University, Canberra, ACT 0200, Australia ^{[1
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不详 ^{[3
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Opt. Lett. | / 9卷 / 670-672期

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We demonstrate that a weak defocusing Kerr effect in an optical medium with predominantly quadratic [or χ(2)] nonlinear response can eliminate the parametric modulational instability of plane waves, leading to the existence of stable two-wave dark and vortex spatial solitons. © 1998 Optical Society of America.

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