中国物理B ›› 2002, Vol. 11 ›› Issue (6): 578-582.doi: 10.1088/1009-1963/11/6/311

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Effects of pulse chirp on supercontinuum produced in dispersion decreasing fibre

吴越, 娄采云, 韩明, 王桐, 高以智   

  1. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2001-11-28 修回日期:2002-02-28 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60072017).

Effects of pulse chirp on supercontinuum produced in dispersion decreasing fibre

Wu Yue (吴越), Lou Cai-Yun (娄采云), Han Ming (韩明), Wang Tong (王桐), Gao Yi-Zhi (高以智)   

  1. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2001-11-28 Revised:2002-02-28 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60072017).

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摘要： The supercontinuum (SC) source plays a key role in wavelength division multiplexing over the optical time division multiplexing (WDM/OTDM) transmission system. The SC produced in dispersion decreasing fibre (DDF) is wider and flatter than that produced in dispersion shifted fibre (DSF). In this paper, a SC producing process in DDF is numerically simulated, the effects of pump pulse chirp on the SC width and flatness are initially studied and the corresponding theoretical explanations are given. Particularly, we have analysed and compared the evolutions of the SC along DDF pumped by different chirp pulses. Several valuable conclusions are obtained.

Abstract: The supercontinuum (SC) source plays a key role in wavelength division multiplexing over the optical time division multiplexing (WDM/OTDM) transmission system. The SC produced in dispersion decreasing fibre (DDF) is wider and flatter than that produced in dispersion shifted fibre (DSF). In this paper, a SC producing process in DDF is numerically simulated, the effects of pump pulse chirp on the SC width and flatness are initially studied and the corresponding theoretical explanations are given. Particularly, we have analysed and compared the evolutions of the SC along DDF pumped by different chirp pulses. Several valuable conclusions are obtained.

Key words: optical time division multiplexing, dispersion deceasing fibre, supercontinuum, chirp

中图分类号:  (Modulation, tuning, and mode locking)

  • 42.60.Fc
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 42.81.Dp (Propagation, scattering, and losses; solitons) 42.79.Sz (Optical communication systems, multiplexers, and demultiplexers?) 02.60.Cb (Numerical simulation; solution of equations)