We 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.
© 2011 Optical Society of America
Original Manuscript: June 17, 2011
Manuscript Accepted: September 5, 2011
Published: October 4, 2011
Felix Dreisow, Gang Wang, Matthias Heinrich, Robert Keil, Andreas Tünnermann, Stefan Nolte, and Alexander Szameit, "Observation of anharmonic Bloch oscillations," Opt. Lett. 36, 3963-3965 (2011)