中国物理B ›› 2008, Vol. 17 ›› Issue (3): 1025-1028.doi: 10.1088/1674-1056/17/3/046

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Higher-order effects on self-similar parabolic pulse in the microstructured fibre amplifier

刘伟慈, 徐文成, 冯杰, 陈伟成, 李书贤, 刘颂豪   

  1. Laboratory of Photonic Information Technology, School of Information and Photoelectric Science and Engineering，South China Normal University, Guangzhou 510006, China
  • 收稿日期:2007-04-11 修回日期:2007-09-16 出版日期:2008-03-04 发布日期:2008-03-04
  • 基金资助:
    Project supported by the National Science Foundation of Guangdong Province, China (Grant No 04010397).

Higher-order effects on self-similar parabolic pulse in the microstructured fibre amplifier

Liu Wei-Ci(刘伟慈), Xu Wen-Cheng(徐文成)†, Feng Jie(冯杰), Chen Wei-Cheng(陈伟成), Li Shu-Xian(李书贤), and Liu Song-Hao(刘颂豪)   

  1. Laboratory of Photonic Information Technology, School of Information and Photoelectric Science and Engineering，South China Normal University, Guangzhou 510006, China
  • Received:2007-04-11 Revised:2007-09-16 Online:2008-03-04 Published:2008-03-04
  • Supported by:
    Project supported by the National Science Foundation of Guangdong Province, China (Grant No 04010397).

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摘要： By considering higher-order effects, the properties of self-similar parabolic pulses propagating in the microstructured fibre amplifier with a normal group-velocity dispersion have been investigated. The numerical results indicate that the higher-order effects can badly distort self-similar parabolic pulse shape and optical spectrum, and at the same time the peak shift and oscillation appear, while the pulse still reveals highly linear chirp but grows into asymmetry. The influence of different higher-order effects on self-similar parabolic pulse propagation has been analysed. It shows that the self-steepening plays a more important role. We can manipulate the geometrical parameters of the microstructured fibre amplifier to gain a suitable dispersion and nonlinearity coefficient which will keep high-quality self-similar parabolic pulse propagation. These results are significant for the further study of self-similar parabolic pulse propagation.

Abstract: By considering higher-order effects, the properties of self-similar parabolic pulses propagating in the microstructured fibre amplifier with a normal group-velocity dispersion have been investigated. The numerical results indicate that the higher-order effects can badly distort self-similar parabolic pulse shape and optical spectrum, and at the same time the peak shift and oscillation appear, while the pulse still reveals highly linear chirp but grows into asymmetry. The influence of different higher-order effects on self-similar parabolic pulse propagation has been analysed. It shows that the self-steepening plays a more important role. We can manipulate the geometrical parameters of the microstructured fibre amplifier to gain a suitable dispersion and nonlinearity coefficient which will keep high-quality self-similar parabolic pulse propagation. These results are significant for the further study of self-similar parabolic pulse propagation.

Key words: self-similar parabolic pulse, microstructured fibre amplifier, higher-order dispersion, nonlinear effect

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

  • 42.81.Dp
42.55.Wd (Fiber lasers)