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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 23078–23084

Linear and nonlinear discrete light propagation in weakly modulated large-area two-dimensional photonic lattice slab in LiNbO3:Fe crystal

Xinyuan Qi, Guoquan Zhang, Ningning Xu, Yiling Qi, Bin Han, Fu Yulan, Changsha Duan, and Jingjun Xu  »View Author Affiliations


Optics Express, Vol. 17, Issue 25, pp. 23078-23084 (2009)
http://dx.doi.org/10.1364/OE.17.023078


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Abstract

A weakly modulated large-area two-dimensional square photonic lattice slab was fabricated through optical induction technique in a photorefractive photovoltaic LiNbO3:Fe crystal. Bragg-matched diffraction technique was used to characterize the square photonic lattice slab. Interestingly, linear discrete diffraction typical for waveguide arrays was observed in such a square photonic lattice slab, indicating that the lattice slab can be viewed effectively as a one-dimensional waveguide array. Furthermore, discrete soliton was demonstrated in the photonic lattice slab due to a saturable self-defocusing nonlinearity arising from the bulk photorefractive photovoltaic effect of LiNbO3:Fe.

© 2009 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(190.5330) Nonlinear optics : Photorefractive optics
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Photonic Crystals

History
Original Manuscript: September 22, 2009
Revised Manuscript: November 19, 2009
Manuscript Accepted: November 19, 2009
Published: December 2, 2009

Citation
Xinyuan Qi, Guoquan Zhang, Ningning Xu, Yiling Qi, Bin Han, Yulan Fu, Changsha Duan, and Jingjun Xu, "Linear and nonlinear discrete light propagation in weakly modulated large-area two-dimensional photonic lattice slab in LiNbO3:Fe crystal," Opt. Express 17, 23078-23084 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-25-23078


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