| Standardization field | Electrical engineering | 
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| Technical committee | BAS/TC 30- Electric cables | 
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| Term (EN) | waveguide dispersion | 
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| Definition (EN) | That dispersion in a signal attributable to the dependence of the phase and group velocities on wavelength due to the geometric properties of the fibre. 
Note. — For optical fibres the dependence is on the ratio (a / λ), where a is core radius and λ is wavelength. | 
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| Term (FR) |  | 
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| Definition (FR) |  | 
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| Term (DE) |  | 
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| Definition (DE) |  | 
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| Term (BS) |  | 
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| Definition (BS) |  | 
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| Term (HR) |  | 
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| Definition (HR) |  | 
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| Term (SR) | disperzija talasovoda | 
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| Definition (SR) | Disperzija u signalu koja se može pripisati zavisnosti fazne i grupne brzine talasa zbog geometrijskih svojstava vlakna.
Napomena — Za optička vlakna zavisnost je data odnosom (a / λ), gdje je a radijus jezgre, a λ je talasna dužina. | 
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| Date | 2017-08-09 | 
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| Standards | BAS IEC 60050-731:2017 | 
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