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Small Amplitude Solitons in the Higher Order Nonlinear Schrödinger Equation in an Optical Fibre |
| WANG Feng-Jiao;TANG Yi |
| Department of Physics, Xiangtan University, Xiangtan 411105 |
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| Cite this article: |
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WANG Feng-Jiao, TANG Yi 2003 Chin. Phys. Lett. 20 1770-1772 |
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Abstract By taking advantage of the approximate approach of small amplitude soliton, we study the higher-order nonlinear Schrödinger 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 Schrödinger equation and the Korteweg-de Vries equation is also demonstrated.
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| Keywords:
42.81.Dp
03.40.Kf
42.65.Tg
42.79.Sz
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Published: 01 October 2003
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| PACS: |
42.81.Dp
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(Propagation, scattering, and losses; solitons)
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03.40.Kf
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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