| 径向折射率周期性分布波导的传播模式 |
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| 引用本文： | 陈义万,张群芝,闵锐. 径向折射率周期性分布波导的传播模式[J]. 光学与光电技术, 2005, 3(5): 56-58,61 |
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| 作者姓名： | 陈义万 张群芝 闵锐 |
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| 作者单位： | 湖北工业大学理学院,武汉,430068;武汉市板桥学校,武汉,430068 |
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| 摘 要： | 在截面为圆形,沿半径方向折射率n1、n2分层周期性分布的波导中,n1折射率层中电磁场为振荡型,n2折射率层中电磁场为衰减型。将相邻n1、n2层作为一个单元,用转移矩阵法进行了计算,得到了单层(m=0)、4层(m=2)、10层(m=5)三种情况下的β-λ关系。虽然多层介质中有衰减层,但它们的β-λ关系与单层的类似。
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| 关 键 词： | 光波导 色散 传播模式 圆截面 |
| 文章编号： | 1672-3392（2005）05-0056-03 |
| 收稿时间： | 2004-10-14 |
| 修稿时间： | 2005-05-08 |
Circular Waveguide Propagation Mode of Refraction Index Periodically Distributed in Radius |
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| CHEN Yi-wan,ZHANG Qun-zhi,MIN Rui. Circular Waveguide Propagation Mode of Refraction Index Periodically Distributed in Radius[J]. optics&optoelectronic technology, 2005, 3(5): 56-58,61 |
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| Authors: | CHEN Yi-wan ZHANG Qun-zhi MIN Rui |
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| Abstract: | In the waveguide of circular cross section, the refraction index is distributed periodically following the radius direction. In the layer with n1, the electromagnetic wave is oscillatory, and the wave is attenuate in layer n2. In the article, it makes the nearest n1, n2 as a unit, and calculates the β-λ relation of m=0, m=2, m=5 with transform matrix and gets the β-λ relation. Although there are attenuate layers, the β-λ relationship in m=2, m=5 is similar to m=0. |
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| Keywords: | optical waveguide chromatic dispersion propagation mode circular cross section |
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