中国物理B ›› 2005, Vol. 14 ›› Issue (2): 366-371.doi: 10.1088/1009-1963/14/2/025

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Subpicosecond pulse compression in nonlinear photonic crystal waveguides based on the formation of high-order optical solitons

陈雄文, 林旭升, 兰胜   

  1. Department of Physics, Shantou University, Shantou 515063, China
  • 收稿日期:2004-05-09 修回日期:2004-06-28 出版日期:2005-03-02 发布日期:2005-03-02
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10374065) and the Natural Science Foundation of Guangdong Province of China (Grant No 32050).

Subpicosecond pulse compression in nonlinear photonic crystal waveguides based on the formation of high-order optical solitons

Chen Xiong-Wen (陈雄文), Lin Xu-Sheng (林旭升), Lan Sheng (兰胜)   

  1. Department of Physics, Shantou University, Shantou 515063, China
  • Received:2004-05-09 Revised:2004-06-28 Online:2005-03-02 Published:2005-03-02
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10374065) and the Natural Science Foundation of Guangdong Province of China (Grant No 32050).

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摘要： We investigate by numerical simulation the compression of subpicosecond pulses in two-dimensional nonlinear photonic crystal (PC) waveguides. The compression originates from the generation of high-order optical solitons through the interplay of the huge group-velocity dispersion and the enhanced self-phase modulation in nonlinear PC waveguides. Both the formation of Bragg grating solitons and gap solitons can lead to efficient pulse compression. The compression factors under different excitation power densities and the optimum length for subpicosecond pulse compression have been determined. As a compressor, the total length of the nonlinear PC waveguide is only ten micrometres and therefore can be easily incorporated into PC integrated circuits.

Abstract: We investigate by numerical simulation the compression of subpicosecond pulses in two-dimensional nonlinear photonic crystal (PC) waveguides. The compression originates from the generation of high-order optical solitons through the interplay of the huge group-velocity dispersion and the enhanced self-phase modulation in nonlinear PC waveguides. Both the formation of Bragg grating solitons and gap solitons can lead to efficient pulse compression. The compression factors under different excitation power densities and the optimum length for subpicosecond pulse compression have been determined. As a compressor, the total length of the nonlinear PC waveguide is only ten micrometres and therefore can be easily incorporated into PC integrated circuits.

Key words: nonlinear photonic crystals, optical solitons, pulse compression

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
42.65.Wi (Nonlinear waveguides) 42.65.Tg (Optical solitons; nonlinear guided waves) 42.79.Dj (Gratings) 42.79.Gn (Optical waveguides and couplers)