Dreisow, F.F.DreisowWang, G.G.WangHeinrich, M.M.HeinrichKeil, R.R.KeilTünnermann, A.A.TünnermannNolte, S.S.NolteSzameit, A.A.Szameit2022-03-042022-03-042011https://publica.fraunhofer.de/handle/publica/22592010.1364/OL.36.003963We report on the experimental observation of Bloch oscillations of an optical wave packet in a lattice with second-order coupling. To this end, we employ zigzag waveguide arrays, in which the second-order coupling can be precisely tuned.en620535journal article