| 单词 | dispersion-shifted fiber |
| 释义 | dispersion-shifted fiberdispersion-shifted fiberA singlemode optical fiber that has been designed to reduce chromatic dispersion. The fiber core is fabricated in several layers with different refractive indices running in parallel throughout its length. Zero-dispersion-shifted fiber has zero chromatic dispersion at 1550 nm. It is no longer manufactured, because it causes interference in WDM transmission. Nonzero-dispersion-shifted fiber is designed for WDM. It has zero dispersion near 1500 nm and beyond 1600 nm, which provides lower dispersion in the 1550 nm range. See graded-index fiber, step index fiber and dispersion. |
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