中国物理B ›› 2006, Vol. 15 ›› Issue (4): 715-720.doi: 10.1088/1009-1963/15/4/011

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Supercontinuum spectra generation in the single-mode optical fibre with concave dispersion profile

徐文成, 高洁丽, 梁湛强, 陈巧红, 刘颂豪   

  1. Lab of Photonic Information Technology, South China Normal University,Guangzhou 510631, China
  • 收稿日期:2005-05-26 修回日期:2006-01-10 出版日期:2006-04-20 发布日期:2006-04-20
  • 基金资助:
    Project supported by the Natural Science Foundation of Guangdong Province of China (Grant No 04010397) and the Excellent Teacher Foundation of Guangdong Province (Grant No Q02084).

Supercontinuum spectra generation in the single-mode optical fibre with concave dispersion profile

Xu Wen-Cheng (徐文成), Gao Jie-Li (高洁丽), Liang Zhan-Qiang (梁湛强), Chen Qiao-Hong (陈巧红), Liu Song-Hao (刘颂豪)   

  1. Lab of Photonic Information Technology, South China Normal University,Guangzhou 510631, China
  • Received:2005-05-26 Revised:2006-01-10 Online:2006-04-20 Published:2006-04-20
  • Supported by:
    Project supported by the Natural Science Foundation of Guangdong Province of China (Grant No 04010397) and the Excellent Teacher Foundation of Guangdong Province (Grant No Q02084).

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摘要： In this paper, a new method is proposed to generate broad supercontinuum (SC) spectra in the single-mode optical fibre with concave dispersion profile. We numerically simulate pulse evolutions and discuss physics mechanism in detail for SC spectrum generation in the optical fibre with concave dispersion profile. Furthermore, general criteria are presented for specifying the shape of SC spectrum by introducing normalized parameters, which are related to the fibres and the initial pump pulses. The results show that the flat and broad SC spectra are indeed generated in our proposed optical fibre.

Abstract: In this paper, a new method is proposed to generate broad supercontinuum (SC) spectra in the single-mode optical fibre with concave dispersion profile. We numerically simulate pulse evolutions and discuss physics mechanism in detail for SC spectrum generation in the optical fibre with concave dispersion profile. Furthermore, general criteria are presented for specifying the shape of SC spectrum by introducing normalized parameters, which are related to the fibres and the initial pump pulses. The results show that the flat and broad SC spectra are indeed generated in our proposed optical fibre.

Key words: supercontinuum spectrum, optical pulse compression, dispersion-flattened / dispersion decreasing fibre, normalized parameters

中图分类号:  (Propagation, scattering, and losses; solitons)

  • 42.81.Dp
02.60.Cb (Numerical simulation; solution of equations) 42.30.Kq (Fourier optics) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)