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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 23 — Nov. 7, 2011
  • pp: 23188–23201

Spectral pulse transformations and phase transitions in quadratic nonlinear waveguide arrays

Frank Setzpfandt, Andrey A. Sukhorukov, Dragomir N. Neshev, Roland Schiek, Alexander S. Solntsev, Raimund Ricken, Yoohong Min, Wolfgang Sohler, Yuri S. Kivshar, and Thomas Pertsch  »View Author Affiliations

Optics Express, Vol. 19, Issue 23, pp. 23188-23201 (2011)

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We study experimentally and numerically the dynamics of a recently found topological phase transition for discrete quadratic solitons with linearly coupled SH waves. We find that, although no stationary states are excited in the experimental situation, the generic feature of the phase transition of the SH is preserved. By utilizing simulations of the coupled mode equations we identify the complex processes leading to the phase transition involving spatial focusing and the generation of new frequency components. These distinct signatures of the dynamic phase transition are also demonstrated experimentally.

© 2011 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics

ToC Category:
Waveguide Arrays

Original Manuscript: September 7, 2011
Revised Manuscript: October 16, 2011
Manuscript Accepted: October 20, 2011
Published: November 1, 2011

Virtual Issues
Nonlinear Optics (2011) Optical Materials Express

Frank Setzpfandt, Andrey A. Sukhorukov, Dragomir N. Neshev, Roland Schiek, Alexander S. Solntsev, Raimund Ricken, Yoohong Min, Wolfgang Sohler, Yuri S. Kivshar, and Thomas Pertsch, "Spectral pulse transformations and phase transitions in quadratic nonlinear waveguide arrays," Opt. Express 19, 23188-23201 (2011)

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