| Generation of Fundamental Dark Soliton Train in Positive Dispersion-decreasing Fibers |
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| 作者姓名： | XU Wencheng WEN Shuangchun GUO QiLIAO Changjun LIU Songhao |
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| 作者单位： | Institute of Quantum Electronics，South China Normal University，Guangzhou 510631，China;1) Physics Department，Hengyang Teachers College，Hunan 421008，China) |
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| 基金项目： | Supported by National "Climb" Project and Natural Science Foundation of Guangdong Province. |
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| 摘 要： | ＧｅｎｅｒａｔｉｏｎｏｆＦｕｎｄａｍｅｎｔａｌＤａｒｋＳｏｌｉｔｏｎＴｒａｉｎｉｎＰｏｓｉｔｉｖｅＤｉｓｐｅｒｓｉｏｎｄｅｃｒｅａｓｉｎｇＦｉｂｅｒｓＸＵＷｅｎｃｈｅｎｇＷＥＮＳｈｕａｎｇｃｈｕｎ１）ＧＵＯＱｉＬＩＡＯＣｈａｎｇｊｕｎＬＩＵＳｏｎ...
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| 关 键 词： | dark soliton modulational instability positive dispersiondecreasing fiber |
| 收稿时间： | 1996/12/3 |
Generation of Fundamental Dark Soliton Train in Positive Dispersion-decreasing Fibers |
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| Abstract: | The propagation dynamics of dual frequency CW signals in positive decreasing dispersion fibers(PDDF) was investigated by solving numerically the modified nonlinear Schrdinger equation. The CW signals can be compressed and finally evolute into fundamental dark soliton pulse. For a given initial pulse intensity or equivalent gain of the fiber, there exists an optimum distance where a dark soliton train is formed. The optimum distance vs the initial pulse amplitude and the equivalent gain of the PDDF are obtained numerically. The mechanism of the dark soliton generation is analysed and discussed. |
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| Keywords: | dark soliton modulational instability positive dispersion decreasing fiber |
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