Optimum refractive-index profile of the graded-index polymer optical fiber, toward gigabit data links

被引:108
作者
Ishigure, T [1 ]
Nihei, E [1 ]
Koike, Y [1 ]
机构
[1] KANAGAWA ACAD SCI & TECHNOL, KANAZAWA KU, YOKOHAMA, KANAGAWA 236, JAPAN
关键词
modal dispersion; material dispersion; graded index; polymer optical fiber (POF); high bandwidth; WKB method;
D O I
10.1364/AO.35.002048
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The optimum refractive-index distribution of the high-bandwidth graded-index polymer optical fiber (POF) was clarified for the first time by consideration of both modal and material dispersions. The ultimate bandwidth achieved by the POF is investigated by a quantitative estimation of the material dispersion as well as the modal dispersion. The results indicate that even if the refractive-index distribution is tightly controlled, the bandwidth of the graded-index POF is dominated by the material dispersion when the required bit rate becomes larger than a few gigabits per second. It is also confirmed that the material dispersion strongly depends on the matrix polymer and that the use of a fluorinated polymer whose material dispersion [-0.078 ns/(nm km)] is lower than that of poly(methyl methacrylate) [-0.305 ns/(nm km)] allows for a 10-Gb/s signal transmission. (C) 1996 Optical Society of America
引用
收藏
页码:2048 / 2053
页数:6
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