Abstract

We demonstrate numerically that a frequency-degenerate process through type II downconversion in a quadratic nonlinear waveguide leads to the formation of spatial simultons and all-optical switching in the presence of a control signal. This novel effect is phase independent, generally insensitive to polarization, and weakly affected by the magnitude of the control input. Multiple solitary waves can also be obtained, depending on the details of the interaction.

© 1997 Optical Society of America

Intensity-controlled interactions between vectorial spatial solitary waves in quadratic nonlinear media

Giuseppe Leo, Gaetano Assanto, and W. E. Torruellas
Opt. Lett. 22(1) 7-9 (1997)

Quadratic spatial soliton generation by seeded downconversion of a strong harmonic pump beam

M. T. G. Canva, R. A. Fuerst, S. Baboiu, G. I. Stegeman, and G. Assanto
Opt. Lett. 22(22) 1683-1685 (1997)

Properties of type II quadratic solitons excited by imbalanced fundamental waves

R. A. Fuerst, M. T. G. Canva, D. Baboiu, and G. I. Stegeman
Opt. Lett. 22(23) 1748-1750 (1997)

Bidimensional spatial solitary waves in quadratically nonlinear bulk media

Giuseppe Leo, Gaetano Assanto, and William E. Torruellas
J. Opt. Soc. Am. B 14(11) 3134-3142 (1997)

Polarization-multiplexed χ⁽²⁾ solitary-wave interactions

B. Costantini, C. De Angelis, A. Barthelemy, A. Laureti Palma, and G. Assanto
Opt. Lett. 22(18) 1376-1378 (1997)