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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 6 — Mar. 21, 2005
  • pp: 1762–1773

Polarization dependent properties of waveguide arrays: band-structure anomaly and high-band localizations

Yoav Lahini, Daniel Mandelik, Yaron Silberberg, and Roberto Morandotti  »View Author Affiliations

Optics Express, Vol. 13, Issue 6, pp. 1762-1773 (2005)

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We experimentally study polarization dependent linear and nonlinear dynamics in waveguide arrays. We found that in certain arrays, the band structure and the modal shapes of the array modes are markedly different for the two polarizations, in a manner that cannot be simply explained using the effective index approximation. Specifically, one of the gaps was found to be missing for the TM polarization. In the nonlinear regime, we observe mixed-polarization nonlinear localizations in high bands, such as Band-2 Floquet-Bloch vector solitons. The band structure anomaly enabled the excitation of a multiband moving breather.

© 2005 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(190.3270) Nonlinear optics : Kerr effect
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(230.4320) Optical devices : Nonlinear optical devices
(230.7370) Optical devices : Waveguides

ToC Category:
Focus Issue: Discrete solitons in nonlinear optics

Original Manuscript: January 18, 2005
Revised Manuscript: February 10, 2005
Published: March 21, 2005

Yoav Lahini, Daniel Mandelik, Yaron Silberberg, and Roberto Morandotti, "Polarization dependent properties of waveguide arrays: band-structure anomaly and high-band localizations," Opt. Express 13, 1762-1773 (2005)

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