Observation of two-dimensional coherent surface vector lattice solitons

Authors :: Heinrich, M.
Kartashov, Y. V.
Szameit, A.
Dreisow, F.
Keil, R.
Nolte, S.
Tunnermann, A.
Vysloukh, V. A.
Torner, L.
Source :: Optics Letters 34, 1624 (2009)
Publication Year :: 2009
Abstract: We report the first experimental observation of vector surface solitons, which form at the edge and in the corner of two-dimensional laser-written waveguide arrays. These elliptically polarized vector states are composed of two orthogonally polarized components. They exist only above a power threshold and bifurcate from scalar surface solitons. The components of a vector soliton may have substantially different degrees of localization in certain parameter ranges.<br />Comment: 16 pages, 4 figures, to appear in Optics Letters