Light Bullets in Nonlinear Periodically Curved Waveguide Arrays

Details Light Bullets in Nonlinear Periodically Curved Waveguide Arrays Light Bullets in Nonlinear Periodically Curved Waveguide Arrays

2010-01-13

arxiv.org/abs/1001.2107v1

Phys. Rev. A 81, 043833(1-7) (2010)

Physics

Optics

7 pages, 4 figures

Scientific paper

10.1103/PhysRevA.81.043833

We predict that stable mobile spatio-temporal solitons can exist in arrays of periodically curved optical waveguides. We find two-dimensional light bullets in one-dimensional arrays with harmonic waveguide bending and three-dimensional bullets in square lattices with helical waveguide bending using variational formalism. Stability of the light bullet solutions is confirmed by the direct numerical simulations which show that the light bullets can freely move across the curved arrays. This mobility property is a distinguishing characteristic compared to previously considered discrete light bullets which were trapped to a specific lattice site. These results suggest new possibilities for flexible spatio-temporal manipulation of optical pulses in photonic lattices.

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