Asymmetric W-shaped and M-shaped soliton pulse generated from a weak modulation in an exponential dispersion decreasing fiber
We study localized waves on continuous wave background in an exponential dispersion decreasing fiber with two orthogonal polarization states. We demonstrate that asymmetric W-shaped and M-shaped soliton pulse can be generated from a weak modulation on continuous wave background. The numerical simula...
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| Published in | Chinese physics B Vol. 26; no. 12; pp. 139 - 145 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.12.2017
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| Online Access | Get full text |
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| Summary: | We study localized waves on continuous wave background in an exponential dispersion decreasing fiber with two orthogonal polarization states. We demonstrate that asymmetric W-shaped and M-shaped soliton pulse can be generated from a weak modulation on continuous wave background. The numerical simulation results indicate that the generated asymmetric soliton pulses are robust against small noise or perturbation. In particular, the asymmetric degree of the asymmetric soliton pulse can be effectively controlled by changing the relative frequency of the two components. This character can be used to generate other nonlinear localized waves, such as dark-antidark and antidark-dark soliton pulse pair, symmetric W-shaped and M-shaped soliton pulse. Furthermore, we find that the asymmetric soliton pulse possesses an asymmetric discontinuous spectrum. |
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| Bibliography: | We study localized waves on continuous wave background in an exponential dispersion decreasing fiber with two orthogonal polarization states. We demonstrate that asymmetric W-shaped and M-shaped soliton pulse can be generated from a weak modulation on continuous wave background. The numerical simulation results indicate that the generated asymmetric soliton pulses are robust against small noise or perturbation. In particular, the asymmetric degree of the asymmetric soliton pulse can be effectively controlled by changing the relative frequency of the two components. This character can be used to generate other nonlinear localized waves, such as dark-antidark and antidark-dark soliton pulse pair, symmetric W-shaped and M-shaped soliton pulse. Furthermore, we find that the asymmetric soliton pulse possesses an asymmetric discontinuous spectrum. asymmetric soliton pulse; asymmetric discontinuous spectrum; exponential dispersion decreasing fiber 11-5639/O4 Xiang-Shu Liu1,2, Li-Chen Zhao1,3, Liang Duan1,3, Zhan-Ying Yang1,3, Wen-Li Yang3,4（1. School of Physics, Northwest University, Xian 710069, China;2. Faculty of Science, Qinzhou University, Qinzhou 535000, China;3. Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xian 710069, China;4. Institute of Modern Physics, Northwest University, Xian 710069, China） |
| ISSN: | 1674-1056 2058-3834 |
| DOI: | 10.1088/1674-1056/26/12/120503 |