Dispersive shock waves in nonlinear arrays.
We experimentally study dispersive shock waves in nonlinear waveguide arrays. In contrast with gap solitons, the nonlinearity here pushes the propagation constant further into the transmission bands, facilitating Bloch mode coupling and energy transport. We directly observe this coupling, both within and between bands, by recording intensity in position space and power spectra in momentum space.
Jia
Shu
S
Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
Wan
Wenjie
W
Fleischer
Jason W
JW