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Slow vector optical solitons in a cold four-level inverted-Y atomic system

  • Optical Physics
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Abstract

The authors show the formation of slow temporal vector optical solitons in a cold lifetime-broadened four-level inverted-Y atomic system. We demonstrate that Maxwell’s equations for describing two orthogonally polarised components of a low intensity signal field can evolve into two coupled nonlinear Schrödinger equations, which results in various distortion-free temporal vector optical solitons, such as bright-bright or dark-dark vector solitons. These results are produced from the correct balance between dispersion, self- and cross-phase modulation (SPM and XPM) effects. We also show that the integrable Manakov model can be realised by adjusting the corresponding SPM, XPM and dispersion effects of this inverted-Y atomic system.

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Authors and Affiliations

  1. Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, 430074, Wuhan, P.R. China

    L. G. Si, X. Y. Lü, J. H. Li & X. X. Yang

  2. Department of Physics, Southeast University, 210096, Nanjing, P.R. China

    W. X. Yang

Authors
  1. L. G. Si
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  2. W. X. Yang
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  3. X. Y. Lü
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  4. J. H. Li
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  5. X. X. Yang
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Correspondence to L. G. Si.

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Si, L., Yang, W., Lü, X. et al. Slow vector optical solitons in a cold four-level inverted-Y atomic system. Eur. Phys. J. D 55, 161–166 (2009). https://doi.org/10.1140/epjd/e2009-00205-7

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  • DOI: https://doi.org/10.1140/epjd/e2009-00205-7

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