| 色散缓变光纤中的调制不稳定性分析 |
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| 引用本文： | 徐文成,罗爱平,郭旗,刘颂豪.色散缓变光纤中的调制不稳定性分析[J].光学学报,2000,20(10):435-1439. |
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| 作者姓名： | 徐文成 罗爱平 郭旗 刘颂豪 |
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| 作者单位： | 华南师范大学量子电子学研究所,广州,510631 |
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| 基金项目： | 国家自然科学基金!(196 74 0 15)，广东省自然科学基金青年项目!(980 0 30 )资助项目 |
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| 摘 要： | 研究了色散缓变光纤中调制不稳定效应,得到了增益谱与光纤纵向色散参量的一般关系式.结果表明,色散缓变光纤较常规光纤具有较宽的增益谱.选取色散级变光纤的色散参量可以获得较大的增益带宽.数值模拟显示,利用色散缓变光纤中的调制不稳定性可以产生高重复率的基本孤子脉冲串.
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| 关 键 词： | 调制不稳定性 孤子脉冲产生 色散缓变光纤 |
| 收稿时间： | 1999/11/16 |
Modulation Instability in Decreasing Dispersion Fibers |
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| Xu Wencheng,Luo Aiping,Guo Qi,Liu Songhao.Modulation Instability in Decreasing Dispersion Fibers[J].Acta Optica Sinica,2000,20(10):435-1439. |
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| Authors: | Xu Wencheng Luo Aiping Guo Qi Liu Songhao |
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| Abstract: | Modulation instability in decreasing dispersion fibers (DDF) is investigated by meansof theoretical analysis and numerical simulation.The gain spectrum of modulation instability is obtained as a function of axially- varying dispersion parameter.The results show thatthe gain spectrum of DDF is much broader than that of ordinary optical fibers.The broad gain bandwidth can be obtained by selecting the dispersion parameter of DDF. The numerical simulation also shows that fundamental soliton pulses with high repetition rate can be generated in this kind of fiber by modulation instability. |
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| Keywords: | modulation instability soliton pulse generation decreasing dispersion fiber |
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