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IEVref: | 731-03-43 | ID: | |

Language: | en | Status: Standard | |

Term: | phase coefficient | ||

Synonym1: | phase constant (term deprecated) (US) [Preferred] | ||

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Symbol: | β | ||

Definition: | the imaginary part of the propagation coefficient
NOTE – The phase coefficient of an optical waveguide is the limit of the phase change of a field quantity between two points on the axis of the guide divided by the distance between the points when this distance tends to zero. | ||

Publication date: | 1991-10 | ||

Source: | 702-02-15 | ||

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