THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Dispersion results in most materials because a material's index of refraction depends on the wavelength of the radiation passing through it; thus different wavelengths entering a material along the same path will fan out into different paths within it. dispersion definition: Dispersion is defined as the breaking up or scattering of something. Even if first trained in the Hellenistic synagogues of the, He also showed how changes in constitution effected, The tuft of hairs at the base facilitates rapid. Thus, different frequencies travel at different speeds. and dispersion synonyms, dispersion pronunciation, dispersion translation, English dictionary definition of dispersion. The sum of material dispersion and waveguide dispersion. (noun) An example of a dispersion is throwing little pieces of paper all over a floor. The state of being dispersed. Ocean waves, for example, move at speeds proportional to the square root of their wavelengths; these speeds vary from a few feet per second for ripples to hundreds of miles per hour for tsunamis. b. In optical fibers, the broadening of the waveforms over long distances by the time they reach the receiving end, which makes them difficult to interpret. By continuing, you agree to our A second cause has to do with the varying of the refractive index due to changes in frequency (or correspondingly, changes in wavelength). Analog signals are naturally many frequencies, but digital pulses are also more than one frequency, because it is difficult to create a perfect single frequency. English Wiktionary. The process by which light rays are distorted, scattered, or redirected differently depending on their wavelength. Copyright © 2018 by LoveToKnow Corp. Webster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Light travels in two polarization states in singlemode fibers. Privacy Policy. Polarization Mode Dispersion (PMD) One is the multiple transmission paths (modes) possible in large-core multimode fibers where each path results in a different travel distance. Over long distances, conditions such as stress and slight irregularities in the fiber core cause random fluctuations in how the two polarizations travel through the fiber. Occurs in multimode fibers, because light travels in multiple modes (reflective paths), and each path results in a different travel distance. People will see it as Author Name with your public flash cards. Webster's New World Telecom Dictionary Copyright © 2010 by Wiley Publishing, Inc., Indianapolis, Indiana. n. 1. a. Dispersion (physics) synonyms, Dispersion (physics) pronunciation, Dispersion (physics) translation, English dictionary definition of Dispersion (physics). Modal dispersion is a major problem with multimode fibers. The separation by refraction of light or other radiation into individual components of different wavelengths. An example of a dispersion is throwing little pieces of paper all over a floor.
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