中国物理B ›› 2020, Vol. 29 ›› Issue (10): 104208-.doi: 10.1088/1674-1056/abab7a

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Ze-Xian Zhang(张泽贤)1, Xiao-Yang Zhao(赵晓阳)1, Ye Li(李烨)1, Hu Cui(崔虎)1,†(), Zhi-Chao Luo(罗智超)1, Wen-Cheng Xu(徐文成)1, Ai-Ping Luo(罗爱平)1   

  • 收稿日期:2020-05-12 修回日期:2020-06-15 接受日期:2020-08-01 出版日期:2020-10-05 发布日期:2020-10-05
  • 通讯作者: Hu Cui(崔虎)

Generation and manipulation of bright spatial bound-soliton pairs under the diffusion effect in photovoltaic photorefractive crystals

Ze-Xian Zhang(张泽贤), Xiao-Yang Zhao(赵晓阳), Ye Li(李烨), Hu Cui(崔虎)†, Zhi-Chao Luo(罗智超), Wen-Cheng Xu(徐文成), and Ai-Ping Luo(罗爱平)   

  1. 1 Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices & Guangzhou Key Laboratory for Special Fiber Photonic Devices and Applications, South China Normal University, Guangzhou 510006, China
  • Received:2020-05-12 Revised:2020-06-15 Accepted:2020-08-01 Online:2020-10-05 Published:2020-10-05
  • Contact: Corresponding author. E-mail: cuihu@m.scnu.edu.cn
  • About author:
    †Corresponding author. E-mail: cuihu@m.scnu.edu.cn
    * Project supported by the National Natural Science Foundation of China (Grant Nos. 61875058, 11874018, 11974006, and 61378036).

Abstract:

The generation and propagation characteristics of bright spatial bound-soliton pairs (BSPs) are investigated under the diffusion effect in photovoltaic photorefractive crystals by numerical simulation. The results show that two coherent solitons, one as the signal light and the other as the control light, can form a BSP when the peak intensity of the control light is appropriately selected. Moreover, under the diffusion effect, the BSP experiences a self-bending process during propagating and the center of the BSP moves on a parabolic trajectory. Furthermore, the lateral shift of the BSP at the output face of the crystal can be manipulated by adjusting the peak intensity of the control light. The research results provide a method for the design of all-optical switching and routing based on the manipulation of the lateral position of BSPs.

Key words: solitons, photovoltaic photorefractive, diffusion effect

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
42.65.-k (Nonlinear optics)