We report on the first (to our knowledge) experimental observation of higher-order modes guided by soliton-induced waveguides in nematic liquid crystals. We find that the nematicon waveguides operate in a bounded power region specific to each guided mode. Below this region, the guided beams diffract; above this region, the mode mixing and coupling give rise to an unstable output.
© 2011 Optical Society of America
Original Manuscript: October 25, 2010
Manuscript Accepted: November 26, 2010
Published: January 11, 2011
Yana V. Izdebskaya, Anton S. Desyatnikov, Gaetano Assanto, and Yuri S. Kivshar, "Multimode nematicon waveguides," Opt. Lett. 36, 184-186 (2011)