JI Xuan-mang, JIANG Qi-chang, LIU Jin-song. Multi-variable gray spatial soliton in biased centrosymmetric two-photon photorefractive crystals[J]. Journal of Applied Optics, 2011, 32(5): 981-986.
Citation: JI Xuan-mang, JIANG Qi-chang, LIU Jin-song. Multi-variable gray spatial soliton in biased centrosymmetric two-photon photorefractive crystals[J]. Journal of Applied Optics, 2011, 32(5): 981-986.
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Multi-variable gray spatial soliton in biased centrosymmetric two-photon photorefractive crystals

  • 1.

    Department of Physics and Electronic Engineering,Yuncheng University,Yuncheng 044000,China;

  • 2.

    College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

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    • Abstract
  • To study multi-variable gray spatial soliton in biased centrosymmetric two-photon photorefractive crystals based on the theory of gray soliton in centrosymmetric two-photon photorefractive crystals, we derived the expressions of the normalized envelope solution of the centrosymmetric two-photon multi-variable grey spatial soliton numerically and investigated the characteristics of soliton. The results show that the multi-variable gray soliton is obtained by the coupling of the multi-beams which share the same polarization, wavelength and independent of each other. When only one or two variables are involved, the multi-variable gray spatial soliton degenerates into centrosymmetric two-photon multi-variable grey spatial soliton or incoherently coupled soliton pairs. When the multi-variable gray spatial soliton propagates in biased centrosymmetric two-photon photorefractive crystals, all the components propagate stably.
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    • References (1)
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