Incoherent multi-gap optical solitons in nonlinear photonic lattices
  We demonstrate numerically that partially incoherent light can be trapped in the spectral band gaps of a photonic lattice, creating partially incoherent multi-component spatial optical solitons in a self-defocusing nonlinear periodic medium. We find numerically such incoherent multi-gap optical solitons and discuss how to generate them in experiment by interfering incoherent light beams at the input of a nonlinear periodic medium. 
Kristian Motzek, Andrey A. Sukhorukov, Friedemann Kaiser, and Yuri S.   Kivshar