| 渐变折射率光纤自聚焦性的数学推导 |
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| 引用本文： | 马晓琳,林金才.渐变折射率光纤自聚焦性的数学推导[J].中国传媒大学学报,2004,11(2):16-19. |
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| 作者姓名： | 马晓琳 林金才 |
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| 作者单位： | 北京广播学院,信息工程学院,北京,100024;北京广播学院,信息工程学院,北京,100024 |
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| 摘 要： | 对渐变光纤的自聚焦性进行了详细的分析和数学推导,尤其针对抛物线型折射率分布和双曲正割型折射率分布的渐变光纤从子午射线的轨迹方程,以及子午射线的渡越时间两个方面进行了全面论证,从而证实了双曲正割型折射率分布对子午光线而言是一种最佳的折射率分布,避免了模色散.
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| 关 键 词： | 渐变折射率 自聚焦 渡越时间 子午射线 |
| 文章编号： | 1007-8819(2004)02-0016-04 |
| 修稿时间： | 2003年11月13日 |
Mathematical Derivation of Self Focusing in Graded Index Fiber |
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| MA Xiao-lin,LIN Jin-cai.Mathematical Derivation of Self Focusing in Graded Index Fiber[J].Journal of Communication University of China Science and TEchnology,2004,11(2):16-19. |
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| Authors: | MA Xiao-lin LIN Jin-cai |
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| Abstract: | On the base of analyzing and mathematical derivation of self focusing in graded index fiber, this paper deduce the loca equation and transition time of meridional rays. Especially with the comparison of parabola and hyperbolic secant refractive-index fiber, it proves that the latter graded index fiber has much better self focusing, and the transition time of various meridional rays in that one is same, so the intermodal distortion can be avoided. |
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| Keywords: | graded index self focusing transition time meridional rays |
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