dispersion-shifted fiber


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dispersion-shifted fiber

A 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.
References in periodicals archive ?
2) Dispersion-shifted fiber in L-band:Dispersion-shifted fiber (DSF) is a type of single-mode optical fiber that is tailored to shift the zero-dispersion wavelength from 1,310 nm to 1,550 nm, a wavelength in which the transmission loss is smaller.
As the backbone of many of the world's most advanced long-haul networks, LEAF fiber is the most widely deployed non-zero dispersion-shifted fiber (NZ-DSF) in the world.
Musser will also point out that Corning made a significant enhancement to LEAF(R) optical fiber, the world's most widely deployed non-zero dispersion-shifted fiber, by further improving the already industry leading polarization mode dispersion (PMD) of the product.
Musser also will announce that Corning has enhanced LEAF(R) fiber, the world's most widely deployed non-zero dispersion-shifted fiber (NZ-DSF), by providing low water peak attenuation, including post-hydrogen aging.