Diffraction-managed solitons and nonlinear beam diffusion in modulated arrays of optical waveguides

Abstract

We study propagation of light in nonlinear diffraction-managed photonic lattices created with arrays of periodically-curved coupled optical waveguides which were fabricated using femtosecond laser writing in silica glass, and titanium indiffusion in LiNbO3 crystals. We identify different regimes of the nonlinear propagation of light beams depending on the input power, and present the first experimental observation of diffraction-managed solitons, which are formed as a result of the interplay between the engineered beam diffraction and nonlinear self-focusing or defocusing. We observe that in self-collimating structures where linear diffraction is suppressed, a novel regime of nonlinear beam diffusion takes place at the intermediate powers before the lattice soliton is formed at higher powers.

References in corpus (5)

• Observation of dynamic localization in periodically-curved waveguide arrays
• Control of Interaction-Induced Dephasing of Bloch Oscillations
• Crossover from self-defocusing to discrete trapping in nonlinear waveguide arrays
• Broadband diffraction management and self-collimation of white light in photonic lattices
• Effect of nonlinearity on the dynamics of a particle in dc field-induced systems

Cited by in corpus (21)

• Light propagation and localization in modulated photonic lattices and waveguides
• Inhibition of light tunneling in waveguide arrays
• Light tunneling inhibition and anisotropic diffraction engineering in two-dimensional waveguide arrays
• Nonlinearity-induced broadening of resonances in dynamically modulated couplers
• Power and momentum dependent soliton dynamics in lattices with longitudinal modulation
• Non-diffracting states in one-dimensional Floquet photonic topological insulators
• Light Bullets in Nonlinear Periodically Curved Waveguide Arrays
• Discrete diffraction and shape-invariant beams in optical waveguide arrays
• Switching management in couplers with biharmonic longitudinal modulation of refractive index
• All-optical switch with two periodically curved nonlinear waveguides
• Floquet engineering of localized propagation of light in waveguide array
• Inhibition of light tunneling for multichannel excitations in longitudinally modulated waveguide arrays
• Light tunneling inhibition in longitudinally modulated Bragg-guiding arrays
• Enhancement and inhibition of light tunneling mediated by resonant mode conversion
• Nonlinearity-induced localization in a periodically-driven semi-discrete system
• Beam splitter and combiner based on Bloch oscillations in spatially modulated waveguide arrays
• Dynamical light control in longitudinally modulated segmented waveguide arrays
• Mobility of nonlocal solitons in fading optical lattices
• Thresholdless discrete surface solitons and stability switchings in periodically curved waveguides
• Parametric amplification of random lattice soliton swinging
• Light tunneling inhibition in array of couplers with combined longitudinal modulation of refractive index