| 光子晶体光纤的耦合分析 |
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| 引用本文： | 陈丽颖,孙军强.光子晶体光纤的耦合分析[J].光学与光电技术,2006,4(3):6-9. |
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| 作者姓名： | 陈丽颖 孙军强 |
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| 作者单位： | 华中科技大学光电子工程系,武汉,430074;华中科技大学光电子工程系,武汉,430074 |
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| 摘 要： | 利用等效折射率模型对光子晶体光纤与普通单模光纤的耦合情况进行了分析,并用有限元分析模型对等效折射率法得到的模场半径随着跨距的增大而增大的模场特性进行了验证,得到了当光子晶体光纤的填充比固定时,随着跨距的增大,耦合损耗会随之减小到最小值,然后又再度增大这一结论.并通过合理地选择光子晶体光纤的填充比以及跨距来提高耦合效率.
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| 关 键 词： | 光子晶体光纤 等效折射率模型 有限元分析模型 耦合效率 耦合损耗 |
| 文章编号： | 1672-3392（2006）03-0006-04 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-03-10 |
Coupling of Photonic Crystal Fibers |
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| CHEN Li-ying,SUN Jun-qiang.Coupling of Photonic Crystal Fibers[J].optics&optoelectronic technology,2006,4(3):6-9. |
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| Authors: | CHEN Li-ying SUN Jun-qiang |
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| Abstract: | The coupling between photonic crystal fiber (PCF) and single mode fiber (SMF) is analyzed by using effective-index model(EIM). The character gotten from EIM that the modular semi-diameter increases with the increase of the pitch is proved by using the finite-element mathematical model. It is concluded that with a settled ratio, the coupling loss decreases to the lowest value with the increase of the pitch.And then the coupling loss increases with the increase of the pitch. The results indicate that the coupling efficiency can be improved by selecting proper structure parameters of PCF. |
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| Keywords: | photonic crystal fiber effective-index model finite-element mathematical model coupling efficiency coupling loss |
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