J4 ›› 2009, Vol. 26 ›› Issue (4): 499-504.

• 纤维与波导光学 • 上一篇    下一篇

自傅立叶信号在光纤中的传输特性?

殷德京   

  1. 湖北师范学院物理系,湖北 黄石435002
  • 收稿日期:2008-09-17 修回日期:2008-10-13 出版日期:2009-07-28 发布日期:2009-06-29
  • 通讯作者: 殷德京 (1958,4 -),男,教授,现任教于湖北师范学院物理系。主要研究领域:非线性光学、凝聚态物理。
  • 基金资助:

    湖北省教育厅项目资助(2002X25)

Transmission properties of self-Fourier signal in the optical fiber

YIN De-Jing   

  1. Department of Physics, Hubei Normal University, Huangshi 435002,Chnia
  • Received:2008-09-17 Revised:2008-10-13 Published:2009-07-28 Online:2009-06-29

摘要:

提出了自傅立叶孤子概念。对自傅立叶孤子信号及自傅立叶高斯信号在光纤中的演变和传输进行了数值模拟和时频分析。结果表明,输入自傅立叶高斯信号,将演变成一类非自傅立叶孤子; 三阶色散效应会影响由自傅立叶高斯信号所演变的孤子的震荡传输幅度,且引起孤子时域延迟、频谱不对称。

关键词: 纤维与波导光学, 自傅立叶信号, 分步傅立叶变换方法, 孤子分裂, 三阶色散

Abstract:

A new concept of Self-Fourier soliton is proposed. The evolution and transmission of Self-Fourier Gauss signal and Self-Fourier soliton in optical fibers is studied numerically. The characteristics of signal evolution and transmission have been studied analytically in both the time domain and frequency domain. The results show that: a class of non-Self-Fourier soliton is obtained from inputting Self-Fourier Gauss signals, and the amplitude of the soliton from the Self-Fourier Gauss signal could be influenced by effect of third-order dispersion on propagation. Effect of third-order dispersion also results in the time delay of the soliton and the spectrum asymmetry of the soliton.

Key words: fiber and waveguide optics, self-fourier signal, split-step Fourier transform method, soliton split, third-order dispersion

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