论文信息 - Splitting of light beams with spiral phase dislocations into solitons in bulk quadratic nonlinear media

Splitting of light beams with spiral phase dislocations into solitons in bulk quadratic nonlinear media

We investigate the propagation of intense light beams in bulk quadratic nonlinear crystals under conditions for second-harmonic generation. We show numerically that input light beams with a spiral phase dislocation self-split in the crystal into several spatial solitons. The number and the pattern of output solitons can be controlled by the material and wave parameters involved and in particular by the input-light intensity and by the topological charge of the dislocation.

Lluis Torner | Dmitri V. Petrov

[1] David J. Hagan,et al. χ(2) cascading phenomena and their applications to all-optical signal processing, mode-locking, pulse compression and solitons , 1996 .

[2] B Luther-Davies,et al. Nonlinear rotation of three-dimensional dark spatial solitons in a Gaussian laser beam. , 1994, Optics letters.

[3] Lluis Torner,et al. Azimuthal instabilities and self-breaking of beams into sets of solitons in bulk second-harmonic generation , 1997 .

[4] Stegeman,et al. Observation of two-dimensional spatial solitary waves in a quadratic medium. , 1995, Physical review letters.

[5] Stegeman,et al. One-dimensional spatial solitary waves due to cascaded second-order nonlinearities in planar waveguides. , 1996, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[6] Law,et al. Optical vortex solitons observed in Kerr nonlinear media. , 1992, Physical review letters.

[7] J. P. Woerdman,et al. Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes. , 1992, Physical review. A, Atomic, molecular, and optical physics.