中国物理B ›› 2009, Vol. 18 ›› Issue (5): 1891-1897.doi: 10.1088/1674-1056/18/5/029

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Transverse effects in photorefractive two-wave mixing

刘劲松1, 汪盛烈1, 刘时雄1, 蔡欣2   

  1. (1)Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; (2)Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;School of Science, Wuhan University of Technology, Wuhan 430070, China
  • 收稿日期:2008-04-28 修回日期:2008-08-27 出版日期:2009-05-20 发布日期:2009-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundations of China (Grant Nos 10174025 and 10574051).

Transverse effects in photorefractive two-wave mixing

Cai Xin(蔡欣)a)b), Liu Jin-Song(刘劲松)a)†, Wang Sheng-Lie(汪盛烈)a), and Liu Shi-Xiong(刘时雄)a)   

  1. a Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; b School of Science, Wuhan University of Technology, Wuhan 430070, China
  • Received:2008-04-28 Revised:2008-08-27 Online:2009-05-20 Published:2009-05-20
  • Supported by:
    Project supported by the National Natural Science Foundations of China (Grant Nos 10174025 and 10574051).

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摘要： In a biased photorefractive crystal, the process of two one-dimensional waves mixing, i.e., the dynamical evolution of both pump beam and signal beam, is traced by numerically solving the coupled-wave equation. Direct simulations show that the propagation and stability of the two beams are completely determined by the system parameters, such as the external bias field, the intensity and the beam waist of the pump beam. By adjusting these parameters, one can control the state of two Gaussian waves mixing. The numerical results are helpful for performing a two-wave mixing experiment.

关键词: two-wave mixing, transverse effects, Gaussian distribution, photorefractive crystal

Abstract: In a biased photorefractive crystal, the process of two one-dimensional waves mixing, i.e., the dynamical evolution of both pump beam and signal beam, is traced by numerically solving the coupled-wave equation. Direct simulations show that the propagation and stability of the two beams are completely determined by the system parameters, such as the external bias field, the intensity and the beam waist of the pump beam. By adjusting these parameters, one can control the state of two Gaussian waves mixing. The numerical results are helpful for performing a two-wave mixing experiment.

Key words: two-wave mixing, transverse effects, Gaussian distribution, photorefractive crystal

中图分类号:  (Phase conjugation; photorefractive and Kerr effects)

  • 42.65.Hw
42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials) 42.70.Mp (Nonlinear optical crystals) 78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))