Discrete gap solitons in modulated waveguide arrays
  We suggest a novel concept of diffraction management in waveguide arrays and predict the existence of discrete gap solitons that possess the properties of both conventional discrete and Bragg grating solitons. We demonstrate that both the soliton velocity and propagation direction can be controlled by varying the input light intensity. 
Andrey A. Sukhorukov, Yuri S. Kivshar