| 三芯非线性光纤耦合器中的短脉冲光开关 |
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| 引用本文： | 俞重远,张晓光,刘秀敏.三芯非线性光纤耦合器中的短脉冲光开关[J].物理学报,2001,50(5):904-909. |
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| 作者姓名： | 俞重远 张晓光 刘秀敏 |
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| 作者单位： | 北京邮电大学理学院,北京100876 |
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| 基金项目： | 国家自然科学基金(批准号:60077026);教育部高等学校骨干教师资助计划项目;北京邮电大学校基金项目资助的课题. |
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| 摘 要： | 利用变分法研究三芯非线性光纤耦合器中的短脉冲光开关,解析分析线性三耦合非线性Schr?dinger方程的结果与数值模拟符合得很好.并且得到在非线性光纤耦合器中孤子的耦合长度和开关阈值,与连续波情况和两芯光纤耦合器的结果不同.
关键词：
光纤耦合器
光开关
耦合长度
开关阈值
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| 关 键 词： | 光纤耦合器 光开关 耦合长度 开关阈值 |
| 收稿时间： | 2000-11-02 |
| 修稿时间： | 2000年11月2日 |
SHORT OPTICAL PULSE SWITCHING IN THREE-CORE NONLINEAR FIBER COUPLERS |
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| YU Zhong-yuan,ZHANG XIAO-GUANG,LIU Xiu-min.SHORT OPTICAL PULSE SWITCHING IN THREE-CORE NONLINEAR FIBER COUPLERS[J].Acta Physica Sinica,2001,50(5):904-909. |
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| Authors: | YU Zhong-yuan ZHANG XIAO-GUANG LIU Xiu-min |
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| Abstract: | The propagation and switching of short optical pulses in a three-core nonlinear fiber coupler have been investigated with a variation method within the framework of the Lagrangian density formulation.The analytical solutions were directly obtained from the coupled nonlinear Schr?dinger equations.It is shown that the soliton switching behavior predicted by the present analytical method agrees well with the results from numerical analysis.In addition,the coupling length and the switching threshold of solitons in a nonlinear coupler were obtained.
Keywords：
nonlinear fiber coupler
optical switching
coupling length
switching threshold |
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| Keywords: | nonlinear fiber coupler optical switching coupling length switching threshold |
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