- Branche: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
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ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
A single-mode fiber that has two claddings. Note 1: Each cladding has a refractive index that is lower than that of the core. Of the two claddings, inner and outer, the inner cladding has the lower refractive index. Note 2: A doubly clad fiber has the advantage of very low macrobending losses. It also has two zero-dispersion points, and low dispersion over a much wider wavelength range than a singly clad fiber. Synonyms depressed-cladding fiber, depressed-inner-cladding fiber, W-profile fiber (from the fact that a symmetrical plot of its refractive index profile superficially resembles the letter W. )
Industry:Telecommunications
A single-mode fiber that has two claddings. Note 1: Each cladding has a refractive index that is lower than that of the core. Of the two claddings, inner and outer, the inner cladding has the lower refractive index. Note 2: A doubly clad fiber has the advantage of very low macrobending losses. It also has two zero-dispersion points, and low dispersion over a much wider wavelength range than a singly clad fiber. Synonyms depressed-cladding fiber, depressed-inner-cladding fiber, W-profile fiber (from the fact that a symmetrical plot of its refractive index profile superficially resembles the letter W. )
Industry:Telecommunications
A single-mode optical fiber that has a nominal zero-dispersion wavelength in the 1. 3-m transmission window. Synonyms dispersion-unmodified fiber, EIA Class IVa fiber, nonshifted fiber.
Industry:Telecommunications
A single-mode optical fiber that has four claddings. Note 1: Each cladding has a refractive index lower than that of the core. With respect to one another, their relative refractive indices are, in order of distance from the core, lowest, highest, lower, higher. Note 2: A quadruply clad fiber has the advantage of very low macrobending losses. It also has two zero-dispersion points, and moderately low dispersion over a wider wavelength range than a singly clad fiber or a doubly clad fiber.
Industry:Telecommunications
A single-mode optical fiber that has its minimum-dispersion wavelength shifted, by the addition of dopants, toward its minimum-loss wavelength. Synonym EIA Class IVb fiber.
Industry:Telecommunications
A single-sideband emission in which the carrier is virtually suppressed and not intended to be used for demodulation.
Industry:Telecommunications
A single-sideband emission in which the degree of carrier suppression enables the carrier to be reconstituted and to be used for demodulation.
Industry:Telecommunications
A single-sideband emission without reduction of the carrier.
Industry:Telecommunications
A situation in which a signaling link becomes unavailable due to factors at a functional level higher than level 2. This may be because of, for example, a central processor failure. It may also be due to a manually initiated blocking of an individual signaling link.
Industry:Telecommunications
A situation in which more than one different time or time measurement can be obtained under the stated conditions.
Industry:Telecommunications
