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Oscillatory behavior of spatial soliton in a gradient refractive index waveguide with nonlocal nonlinearity

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Abstract

Oscillatory behavior of spatial solitons in a transverse parabolic gradient refractive index distribution (GRIN) waveguide with both local and nonlocal nonlinearity is investigated. Dynamics of such solitons are analyzed by the effective-particle approach method. For weak nonlocal nonlinearity, solitons oscillate in transverse direction periodically during propagation. The normalized width and maximum of refractive index variation of the waveguide play a key role in determining the oscillating period while the position of soliton oscillatory center is slightly influenced by the nonlocal nonlinearity. Stronger nonlocal nonlinearity leads to instability of the oscillatory solitons. Furthermore, the dynamics of the solitons are simulated numerically and good agreements are obtained between the analysis and numerical results. This behavior may be used in all-optical routers, switches etc.

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Authors and Affiliations

  1. Institute of Information Optics, Zhejiang Normal University, Jinhua, 321004, P.R. China

    L.W. Dong & H. Wang

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  1. L.W. Dong
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  2. H. Wang
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Correspondence to L.W. Dong.

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PACS

42.65.Tg; 42.65.Jx; 42.65.Wi

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Dong, L., Wang, H. Oscillatory behavior of spatial soliton in a gradient refractive index waveguide with nonlocal nonlinearity. Appl. Phys. B 84, 465–469 (2006). https://doi.org/10.1007/s00340-006-2289-8

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  • DOI: https://doi.org/10.1007/s00340-006-2289-8

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