Propagation dynamics of nonlinear Airy beams in photonic lattices with negative defects

As optical communication technologies move toward fully light-based architectures, unconventional beams offer new opportunities for advanced control of light propagation and information processing. Airy beams, in particular, are notable for their self-bending trajectories and resistance to diffraction. In this study, we explore how these beams evolve nonlinearly when propagating through optically induced photonic lattices with defects. By conducting a detailed analysis, we show that the interplay between beam parameters, lattice design, and nonlinear effects governs the number, position, and intensity of the resulting output channels. Our investigation reveals that fine adjustments of these factors allow not only the creation of multiple stable output pathways but also control over their spacing. These insights underscore the relevance of defect-tailored lattices combined with Airy beam excitation for optical routing and interconnects, contributing to the development of adaptable all-optical processing systems.