| Subpicosecond pulse compression in nonlinear photonic crystal waveguides based on the formation of high-order optical solitons |
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| 引用本文： | 陈雄文,林旭升,兰胜. Subpicosecond pulse compression in nonlinear photonic crystal waveguides based on the formation of high-order optical solitons[J]. 中国物理, 2005, 14(2): 366-371 |
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| 作者姓名： | 陈雄文 林旭升 兰胜 |
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| 作者单位： | Department of Physics, Shantou University, Shantou 515063, China;Department of Physics, Shantou University, Shantou 515063, China;Department of Physics, Shantou University, Shantou 515063, China |
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| 基金项目： | 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.
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| 关 键 词： | 非线性光子学晶体 光学孤波 脉冲压缩 二维波导 相调制 |
| 收稿时间： | 2004-05-09 |
Subpicosecond pulse compression in nonlinear photonic crystal waveguides based on the formation of high-order optical solitons |
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| Chen Xiong-Wen,Lin Xu-Sheng and Lan Sheng. Subpicosecond pulse compression in nonlinear photonic crystal waveguides based on the formation of high-order optical solitons[J]. Chinese Physics, 2005, 14(2): 366-371 |
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| Authors: | Chen Xiong-Wen Lin Xu-Sheng Lan Sheng |
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| Affiliation: | Department of Physics, Shantou University, Shantou 515063, China |
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| 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. |
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| Keywords: | nonlinear photonic crystals optical solitons pulse compression |
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