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Dark spatial solitons sequence in the biased centrosymmetric photorefractive crystal

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Abstract

We theoretically investigate the evolution of dark screening spatial solitons originating from the quadratic electro-optic effect in biased centrosymmetric photorefractive (CP) crystal by using beam propagation method (BPM). The results indicate that the multiple dark solitons sequence can be obtained in the CP crystal with the odd or even initial conditions. If the initial width of the dark notch is smaller, only a fundamental soliton or a Y-junction soliton pair is generated. When the initial width of the dark notch and the bias electric field are increased, the multiple dark spatial solitons sequence is formed, which realized a progressive transition from a low-order soliton to a higher-order solitons sequence in both odd and even conditions. The solitons characteristic is similar to that of screening solitons in the non-centrosymmetric photorefractive (NCP) crystals.

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Authors and Affiliations

  1. College of Opto-Electronic Engineering, Xi’an Technological University, Xi’an, 710021, China

    Yuhong Zhang

  2. College of Freshmen, Xi’an Technological University, Xi’an, 710021, China

    Xinjuan Jia

Authors
  1. Yuhong Zhang
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  2. Xinjuan Jia
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Correspondence to Yuhong Zhang.

Additional information

This work has been supported by the National Foundation of Shaanxi Provincial Department of Education (No.17JK0389).

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The authors declare that there are no conflicts of interest related to this article.

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Zhang, Y., Jia, X. Dark spatial solitons sequence in the biased centrosymmetric photorefractive crystal. Optoelectron. Lett. 18, 601–605 (2022). https://doi.org/10.1007/s11801-022-2024-7

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  • DOI: https://doi.org/10.1007/s11801-022-2024-7

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