Abstract

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.

© 1997 Optical Society of America

Soliton excitation and mutual locking of light beams in bulk quadratic nonlinear crystals

Lluis Torner and Ewan M. Wright
J. Opt. Soc. Am. B 13(5) 864-875 (1996)

Solitary-wave vortices in quadratic nonlinear media

Juan P. Torres, J. M. Soto-Crespo, Lluis Torner, and Dmitri V. Petrov
J. Opt. Soc. Am. B 15(2) 625-627 (1998)

Observation of azimuthal modulational instability and formation of patterns of optical solitons in a quadratic nonlinear crystal

Dmitri V. Petrov, Lluis Torner, Jordi Martorell, Ramon Vilaseca, Juan P. Torres, and Crina Cojocaru
Opt. Lett. 23(18) 1444-1446 (1998)

Spatial walking solitons in quadratic nonlinear crystals

Lluis Torner, Dumitru Mihalache, Dumitru Mazilu, Maria C. Santos, and Nail N. Akhmediev
J. Opt. Soc. Am. B 15(5) 1476-1487 (1998)

Multicharged vortex evolution in seeded second-harmonic generation

Gabriel Molina-Terriza and Lluis Torner
J. Opt. Soc. Am. B 17(7) 1197-1204 (2000)