Paper A57

Observation of polychromatic gap solitons

Andrey A. Sukhorukov, Dragomir N. Neshev, Alexander Dreischuh, Wieslaw Krolikowski, Jeremy Bolger, Benjamin J. Eggleton, Lam Bui, Arnan Mitchell, Yuri S. Kivshar


We study theoretically and observe experimentally polychromatic gap solitons generated by supercontinuum light in an array of optical waveguides. The solitons are formed through a sharp transition from diffraction-induced broadening and color separation to the simultaneous spatio-spectral localization of supercontinuum light inside the photonic bandgap with the formation of the characteristic staggered phase structure for all colors.