Phys. Rev. A 80, 043824 (2009) [6 pages]Defect-mediated discrete solitons in optically induced photorefractive latticesReceived 26 February 2009; revised 13 May 2009; published 20 October 2009 Theoretical analysis to the defect mediated discrete solitons in one- and two-dimensional periodical waveguide lattices is presented. The waveguide arrays with these functional defects are assumed to respond to the light field as an optically induced photorefraction and they are patterned by a holographic technique. It is found that the spatial energy distributions of the solitary waves can be controlled by the defects in the waveguide arrays, and this gives rise to an additional freedom to externally shaping the light field distribution to a special shape. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.80.043824
DOI:
10.1103/PhysRevA.80.043824
PACS:
42.65.Tg, 42.65.Hw, 42.40.Kw
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