Coherence Length

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Coherence length
In physics, coherence length is the propagation distance from a coherent source to a point where an electromagnetic wave maintains a specified degree of coherence. The significance is that interference will be strong within a coherence length of the source, but not beyond it. This concept is also commonly used in telecommunication engineering.
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Telecommunication Standard Terms DictionaryDownload this dictionary
coherence length
The propagation distance from a coherent source to a point where an electromagnetic wave maintains a specified degree of coherence. (188 ) Note 1: In long-distance transmission systems, the coherence length may be reduced by propagation factors such as dispersionscattering, and diffraction. Note 2: In optical communications, the coherence length, L , is given approximately by L = 2/(n ), where is the central wavelength of the source, n is the refractive index of the medium, and is the spectral width of the source. Note 3: Coherence length is usually applied to the optical regime.


Integrated Circuit DictionaryDownload this dictionary
Coherence Length
the wavelength of a light source divided by the bandwidth of light of the light source.

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coherence length
B: (Fisika) jarak sederap (koherens)
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