| Switching Dynamic Analysis for Twin-Core Fibre Coupler Using Supermode Theory |
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| 作者姓名： | 罗爱平 徐文成 陈伟成 崔虎 |
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| 作者单位： | Laboratory of Photonic Information Technology and Institute of Quantum Electronics, South China Normal University, Guangzhou 510631 |
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| 基金项目： | Supported by the Natural Science Foundation of Guangdong Province （04010397）, and the Excellent Teacher Foundation of Guangdong Province （Q02084）. |
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| 摘 要： |
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| 关 键 词： | 转换动力学分析 双核纤维连接器 超级模式理论 光学转换 |
| 收稿时间： | 2005-07-26 |
| 修稿时间： | 2005-07-26 |
Switching Dynamic Analysis for Twin-Core Fibre Coupler Using Supermode Theory |
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| LUO Ai-Ping, XU Wen-Cheng, CHEN Wei-Cheng, CUI Hu.Switching Dynamic Analysis for Twin-Core Fibre Coupler Using Supermode Theory[J].Chinese Physics Letters,2006,23(2):381-384. |
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| Authors: | LUO Ai-Ping XU Wen-Cheng CHEN Wei-Cheng CUI Hu |
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| Abstract: | Characteristics of optical switching in a twin-core fibre coupler are numerically analysed under short pulse input by using supermode theory. The dynamic nonlinear coupled superlnode equations are derived, The numerical results show that the input pulse width determines the power transfer and the pulse temporal profile in the output ports. The optimal switching characteristics can be obtained by selecting an appropriate initial pulse width. In addition, the switching characteristic curves are insensitive to the input pulse shape for either fundamental soliton pulse or Gaussian pulse input, but sensitive to pulse sharpness. A reduced switching power and a sharper switching transition can be obtained by using the sharp super-Gaussian pulse. |
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