The band structure of waveguide arrays was investigated experimentally and realized linear and nonlinear propagation in higher bands using two types of geometries. As such, the Floquet-Bloch approach was used to analyze the experimental observations, both in the linear and the nonlinear regimes. Floquet-Bloch solitons were observed, and shown to be a generalization of discrete solitons, for higher array bands.
|Physical Review Letters
|Published - 7 Feb 2003
Bibliographical noteFunding Information:
The authors gratefully acknowledge the financial support of the U.S.-Israel Binational Science Foundation (BSF) and the Natural Science and Engineering Re?>search Council (NSERC).