graded-index core

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• graded-index fibre — noun A fibre in an optical fibre cable, in which the refractive index of the glass decreases gradually or in small steps from the central core to the periphery • • • Main Entry: ↑grade …   Useful english dictionary

• Graded-index fiber — In fiber optics, a graded index or gradient index fiber is an optical fiber whose core has a refractive index that decreases with increasing radial distance from the fiber axis (the imaginary central axis running down the length of the… …   Wikipedia

• Step-index profile — For an optical fiber, a step index profile is a refractive index profile characterized by a uniform refractive index within the core and a sharp decrease in refractive index at the core cladding so that the cladding is of a lower refractive index …   Wikipedia

• Refractive index profile — A refractive index profile is the distribution of refractive indices of materials within an optical fiber. Some optical fiber has a step index profile, in which the core has one uniformly distributed index and the cladding has a lower uniformly… …   Wikipedia

• Power-law index profile — For optical fibers, a power law index profile is an index of refraction profile characterized by : n(r) = egin{cases} n 1 sqrt{1 2Deltaleft({r over alpha} ight)^g} r le alpha n 1 sqrt{1 2Delta} r ge alpha end{cases}whereDelta = {n 1^2 n 2^2 over …   Wikipedia

• stepped-index fibre — noun (telecommunications) An optical fibre in which there is an abrupt transition from the higher refractive index of the information bearing core to the lower refractive index of the cladding (cf ↑graded index fibre) • • • Main Entry: ↑step …   Useful english dictionary

• Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …   Wikipedia

• industrial glass — Introduction       solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …   Universalium

• Multi-mode optical fiber — A 1.25 Gbit/s multi mode fiber Multi mode optical fiber (multimode fiber or MM fiber or fibre) is a type of optical fiber mostly used for communication over short distances, such as within a building or on a campus. Typical multimode links… …   Wikipedia

• telecommunications media — Introduction       equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation       Every… …   Universalium

• Photonic-crystal fiber — (PCF) is a new class of optical fiber based on the properties of photonic crystals. Because of its ability to confine light in hollow cores or with confinement characteristics not possible in conventional optical fiber, PCF is now finding… …   Wikipedia