Polychromatic Optical Bloch Oscillations
arXiv:1001.0988 · doi:10.1364/OL.34.002174
Abstract
Bloch oscillations (BOs) of polychromatic beams in circularly-curved optical waveguide arrays are smeared out owing to the dependence of the BO spatial period on wavelength. Here it is shown that restoring of the self-imaging property of the array and approximate BOs over relatively broad spectral ranges can be achieved by insertion of suitable lumped phase slips uniformly applied across the array.
3 pages, 4 figures