Small Amplitude Solitons in the Higher-Order Nonlinear Schroedinger Equation in an Optical Fibre |
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作者姓名: | 王凤姣 唐翌 |
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作者单位: | DepartmentofPhysics,XiangtanUniversity,Xiangtan411105 |
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摘 要: | By taking advantage of the approximate approach of small amplitude soliton, we study the higher-order nonlinear Schroeinger equation in an optical fibre. Our results show that the bright and dark solitons of small amplitude can appear on the background of a continuous wave in normal dispersion regime or in anomalous dispersion regime simultaneously due to the higher-order effects. Interesting connection between the higher-order nonlinear Schroedinger equation and the Korteweg-de Vries equation is also demonstrated.
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关 键 词: | 高次非线性Schroeinger方程 光纤 孤波 光通信 |
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