| 具有饱和非线性的非克尔光纤的调制不稳定性 |
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| 引用本文： | 刘秀敏,杨性愉.具有饱和非线性的非克尔光纤的调制不稳定性[J].光子学报,1998,27(1):41-45. |
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| 作者姓名： | 刘秀敏 杨性愉 |
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| 作者单位： | 内蒙古大学物理系!呼和浩特，010021，内蒙古大学物理系!呼和浩特，010021，内蒙古师范大学物理系!呼和浩特，010022，内蒙古大学物理系!呼和浩特，010021 |
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| 摘 要： | 理论上分析了当存在高阶色散时具有饱和非线性的非克尔光纤的调制不稳定性.三阶色散对调制不稳定性没有影响,四阶色散效应导致在正常和反常色散区出现了新的调制不稳定区.并且对比了不同他和参数的增益谱,在新的调制不稳定区,发现同样有一个临界调制频率对应两个入射功率的现象.
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| 关 键 词： | 饱和非线性 调制不稳定性 四阶色散 |
| 收稿时间： | 1997-06-16 |
MODULATIONAL INSTABILITY IN NON-KERR-LIKE OPTICAL FIBERS WITH SATURABLE NONLINARITY |
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| Liu Xiumin, Yang Xingyu, Wang Jin, Feng Qiyuan.MODULATIONAL INSTABILITY IN NON-KERR-LIKE OPTICAL FIBERS WITH SATURABLE NONLINARITY[J].Acta Photonica Sinica,1998,27(1):41-45. |
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| Authors: | Liu Xiumin Yang Xingyu Wang Jin Feng Qiyuan |
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| Institution: | 1. Department of Physics, Inner Mongolia University, Hohhot, 010021;2. Department Of Physics, Inner Mongolia Normal University, Hohhot, 010022 |
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| Abstract: | Taking account of the effect of higher--order dispersion, Modulational instability in non-Kerr-like optical fibers with saturable nonlinearity is theoretically analyzed,the thrid order dispersionhas no influence on modulational instability,the fourth order dispersion leads to the appearance of thenew regions of modulational instability in positive and negative dispersion, the gain spectrum ofdifferent saturation parameters are contrasted. In new regions,two different input powers will generatethe same critical modulational frequency. |
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| Keywords: | Saturable nonlinearity Modulational instability The fourth--order dispersion |
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