J4 ›› 2011, Vol. 28 ›› Issue (2): 168-171.

• 第二届全国光学青年学术论坛论文选登 • 上一篇    下一篇

非局域多色矢量孤子

黄春福   

  1. 天津师范大学物理与电子信息学院, 天津 300387
  • 出版日期:2011-03-28 发布日期:2011-03-03
  • 基金资助:

    天津师范大学引进人才科研启动基金项目(5RL074);国家自然科学基金项目(61078059, 11005080);

Nonlocal-polychromatic-vector solitons

HUANG Chun-fu   

  1. College of Physics and Electronic Information, Tianjin Normal University, Tianjin 300387, China
  • Published:2011-03-28 Online:2011-03-03
  • Contact: 黄春福 博士,讲师,从事非线性光学方向的教学和科研. E-mail:huang.chunfu@yahoo.com.cn

摘要:

数值研究了弱非局域kerr介质中的多色矢量孤子,表明该介质能以更小入射功率支持该矢量孤子且能使其稳定传播。形成孤子时的宽度谱都随着波长增大而增大,与光束的入射功率谱无关;而等光强入射时形成的光强谱却随着波长增大而减小。通过比较发现弱非局域情况下的光强谱和宽度谱变化规律比强非局域情况更明显。

关键词: 非线性光学, 多色矢量孤子, 非局域介质, 光束传播

Abstract:

Polychromatic-vector solitons is investigated numerically in weak nonlocal nonlinear kerr media. Results show that such solitons can be formed and propagate stably in this media with lower input power. Soliton spectrum width  increase with increasing of wavelength and is independent of their input power spectra. However, soliton intensity is decreased with increasing of wavelength when the input power spectra are equal. Furthermore it is found that this character is distinct compare to that in strongly nonlocal cases.

Key words: nonlinear optics, polychromatic vector solitons, nonlocal media, beam propagation

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