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Tunable discrete Talbot effect in inhomogeneous photonic lattices

: Szameit, A.; Pertsch, T.; Nolte, S.; Tünnermann, A.


Optics communications 281 (2008), No.6, pp.1510-1514
ISSN: 0030-4018
Journal Article
Fraunhofer IOF ()
wave-guide array; optical bloch oscillation; surface soliton

We discuss the discrete Talbot effect in one- and two-dimensional waveguide lattices under the influence of an external potential. It is shown that the field recovery can be precisely tuned by changing the gradient of the potential. In a two-dimensional configuration, the diagonal coupling does not affect the period of recovery.