Coherent nonlinear beam interactions in 1D waveguide arrays

J. Meier; J. S. Aitchison; G. I. Stegeman; D. N. Christodoulides; R. Morandotti; H. Yang; G. Salamo; M. Sorel; Y. Silberberg

doi:10.1117/12.629732

30 September 2005 Coherent nonlinear beam interactions in 1D waveguide arrays

J. Meier, J. S. Aitchison, G. I. Stegeman, D. N. Christodoulides, R. Morandotti, H. Yang, G. Salamo, M. Sorel, Y. Silberberg

Author Affiliations +

Proceedings Volume 5971, Photonic Applications in Nonlinear Optics, Nanophotonics, and Microwave Photonics; 597103 (2005) https://doi.org/10.1117/12.629732
Event: Photonics North, 2005, Toronto, Canada

Abstract

Discrete nonlinear optical systems exhibit unique properties unknown from wave propagation in bulk materials. Among them are the possibilities to form highly localized discrete solitons and the ability of a wide beam to propagate without diffraction and modulational instability across the array. The interaction between a highly localized discrete soliton and a non-diffracting beam has potential applications for all optical routing and switching. We present our results on the experimental investigation of this kind of beam interactions in a one-dimensional AlGaAs array at a wavelength of 1550 nm. A discrete soliton, almost completely confined to a single waveguide, was excited and the interaction with a wide beam of the same or orthogonal polarization was studied. We confirmed that the wide beam is able to drag the soliton over multiple waveguides towards itself while the soliton is able to maintain its original, highly confined shape. The outcome of the coherent interaction depends on the power of the wide beam and the relative phase between the two beams. This phase-dependence is due to linear interference in the case of co-polarized beams and due to four-wave mixing for orthogonally polarized beams.

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J. Meier, J. S. Aitchison, G. I. Stegeman, D. N. Christodoulides, R. Morandotti, H. Yang, G. Salamo, M. Sorel, and Y. Silberberg "Coherent nonlinear beam interactions in 1D waveguide arrays", Proc. SPIE 5971, Photonic Applications in Nonlinear Optics, Nanophotonics, and Microwave Photonics, 597103 (30 September 2005); https://doi.org/10.1117/12.629732

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