| Standardization field | Electrical engineering
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| Technical committee | BAS/TC 30- Electric cables |
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| Term (EN) | normalised frequency, V number (symb.: V) |
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| Definition (EN) | In an optical fibre a dimensionless quantity, denoted by V, given by
V=2πa/λ (n_1^2-n_2^2 )^(1/2)
where :
a is the fibre core radius,
λ is wavelength in vacuum, and
n1 and n2 are the maximum refractive index in the core and refractive index of the innermost homogenous cladding, respectively. |
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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) | normalizovana frekvencija, V broj (simbol: V) |
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| Definition (SR) | Kod optičkog vlakna bezdimenziona veličina koja je, označena sa V, data je sa:
V=2πa/λ (n_1^2-n_2^2 )^(1/2)
gdje je:
a radijus jezgre vlakna,
λ je talasna dužina u vakuumu,
n1 i n2 su maksimalni indeks prelamanja u jezgru i indeks prelamanja najdubljeg homogenog omotača, respektivno. |
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| Date | 2017-08-09 |
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| Standards | BAS IEC 60050-731:2017 |
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