We study light localization at a phase-slip defect created by two semi-infinite mismatched identical arrays of coupled optical waveguides. We demonstrate that the nonlinear defect modes possess the specific properties of both nonlinear surface modes and discrete solitons. We analyze the stability of the localized modes and their generation in both linear and nonlinear regimes.
© 2008 Optical Society of America
Original Manuscript: January 4, 2008
Manuscript Accepted: March 13, 2008
Published: April 22, 2008
Mario I. Molina and Yuri S. Kivshar, "Nonlinear localized modes at phase-slip defects in waveguide arrays," Opt. Lett. 33, 917-919 (2008)