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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 11 — Jun. 1, 2010
  • pp: 1908–1910

Nontrivial Bloch oscillations in waveguide arrays with second-order coupling

Gang Wang, Ji Ping Huang, and Kin Wah Yu  »View Author Affiliations


Optics Letters, Vol. 35, Issue 11, pp. 1908-1910 (2010)
http://dx.doi.org/10.1364/OL.35.001908


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Abstract

Under the influence of the next-nearest-neighbor interaction, we theoretically investigate the occurrence of Bloch oscillations in zigzag waveguide arrays. Because of the special topological configuration of the lattice itself, the second-order coupling (SOC) can be enhanced significantly and leads to the band alteration beyond the nearest-neighbor model, i.e., the offset of minimum value from the band edge. Contrary to the behavior in the vanishing SOC, the oscillation patterns exhibit new features, namely, a double turning-back occurs when the beam approaches the band edge. Our results can be applied to some ordered-lattice systems.

© 2010 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Integrated Optics

History
Original Manuscript: January 4, 2010
Revised Manuscript: April 24, 2010
Manuscript Accepted: April 30, 2010
Published: May 28, 2010

Citation
Gang Wang, Ji Ping Huang, and Kin Wah Yu, "Nontrivial Bloch oscillations in waveguide arrays with second-order coupling," Opt. Lett. 35, 1908-1910 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-11-1908


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