| 塑料光纤的远场辐射图和微分模式损耗研究 |
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| 引用本文： | 郑史烈,章献民,陈抗生.塑料光纤的远场辐射图和微分模式损耗研究[J].光子学报,2003,32(12):1434-1437. |
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| 作者姓名： | 郑史烈 章献民 陈抗生 |
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| 作者单位： | 浙江大学信息与电子工程学系,杭州,310027 |
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| 基金项目： | SupportedbytheresearchfundfortheDoctoralProgramofHigherEducation(GrantNo.2 0 0 10 335 0 37)fromtheMinistryofEducation ,China |
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| 摘 要： | 通过观察塑料光纤远场辐射图,分析了阶跃型塑料光纤中的模式耦合效果.实验结果表明,阶跃型塑料光纤的模式耦合效果很明显,模式耦合从光纤传输5米左右开始发生,到传输20～30 m时,模式耦合完成,光纤末端能量分布达到稳态.采用剪断法测量了塑料光纤的微分模式损耗,发现微分模式损耗随着模阶的增加而增加,大多数模阶的微分模式损耗在150～180 dB/km范围内.
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| 关 键 词： | 塑料光纤 模式耦合 微分模式损耗 远场辐射 |
| 收稿时间： | 2003-01-02 |
Far Field Pattern and Differential Mode Attenuation of POF |
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| Abstract.Far Field Pattern and Differential Mode Attenuation of POF[J].Acta Photonica Sinica,2003,32(12):1434-1437. |
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| Authors: | Abstract |
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| Institution: | Department of Information & Electronic Engineering, Zhejiang University, Hangzhou 310027 |
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| Abstract: | The mode coupling effect for SI-POF is studied by observing its far field radiation pattern. The results show that a transmission distance of 5 m is enough to start the mode coupling. The equilibrium mode distribution condition is established after transmitting for about 20～30 m. Differential mode attention of the same SI-POF is measured using the cut-back method. It is found that the attenuation increased with the increasing mode order. Most of the mode′s attenuation is determined to be about 150 ～180 dB/km. |
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| Keywords: | Polymer optical fiber Mode coupling Differential mode attenuation Far field radiation pattern |
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