| 摘要 |
A dispersion compensating optical fiber, together with a single mode optical fiber with zero dispersion at a wavelength of about 1.3 microns, can compose an optical transmission line, which provides improved transmission characteristics and efficient dispersion compensation. The total dispersion slope of an optical transmission line is improved while the dispersion of a single mode optical fiber is well compensated for. The dispersion compensati ng optical fiber has a triply-cladded structure including first, second and thi rd cladding layers applied in sequence over the core. The difference in relativ e index of refraction between regions as well as their outside diameters are optimized while the dispersion of the single mode optical fiber is compensat ed for so that an optical transmission system with a desirable total dispersion slope can be realized.
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