| 色散缓变光纤中Raman孤子自频移效应的研究 |
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| 引用本文： | 文双春.色散缓变光纤中Raman孤子自频移效应的研究[J].四川激光,1998(4). |
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| 作者姓名： | 文双春 |
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| 作者单位： | 衡阳师范高等专科学校物理系 |
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| 摘 要： | 利用绝热扰动法研究了色散缓变光纤中Ｒａｍａｎ孤子自频移效应，得到了色散缓变光纤中Ｒａｍａｎ孤子自频移的表达式。结果表明：光纤色散变化率存在一个可以有效抑制孤子自频移的阈值，当光纤色散变化率大于这个阈值时，色散缓变光纤可以抑制孤子自频移，而当光纤色散变化率小于这个阈值时，色散缓变光纤不仅不能抑制孤子自频移，反而加剧孤子自频移。
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| 关 键 词： | Raman孤子自频移，色散缓变光纤，光孤子 |
Study of Raman soliton self frequency shift in dispersion decreasing fiber |
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| Wen Shuangchun.Study of Raman soliton self frequency shift in dispersion decreasing fiber[J].Laser Journal,1998(4). |
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| Authors: | Wen Shuangchun |
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| Abstract: | Raman soliton self frequency shift (SSFS) of ultrashort pulses propagating in a dispersion decreasing fiber (DDF) is studied in this paper.A General expression for SSFS is obtained using the adiabatic perturbation approach.It is shown that there exists a threshold of the rate of the fiber dispersion decrease for the suppression of SSFS of solitons propagating in DDFs,and only when the rate of the fiber dispersion decrease is less than the threshold can SSFS be suppressed in the DDF. |
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| Keywords: | Raman soliton self frequency shift dispersion decreasing fiber optical soliton |
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