| Standardization field | Electrical engineering
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| Technical committee | BAS/TC 30- Electric cables |
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| Term (EN) | acceptance angle |
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| Definition (EN) | Half the vertex angle of that cone within which optical power may be coupled into bound modes of an optical fibre.
Note.
1 — Acceptance angle is a function of position on the entrance face of the core when the refractive index is a function of radius in the core. In that case, it is :
arcsin [n2 (r) — n_1^2 ]1/2
where n (r) is the refractive index and n2 is the minimum refractive index of the cladding.
2 — Power may be coupled into leaky modes at angles exceeding the acceptance angle. |
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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) | prihvatni ugao |
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| Definition (SR) | Pola vršnog ugla tog konusa unutar kog optička snaga može biti spojena sa graničnim modovima optičkog vlakna.
Napomene
1 – Prihvatni ugao je funkcija položaja na ulaznoj površini jezgre kada je indeks prelamanja funkcija radijusa jezgre. U tom slučaju je:
arcsin [n2 (r) — n_1^2 ]1/2
gdje je n (r) indeks prelamanja, a n2 minimalni indeks prelamanja omotača.
2 – Snaga se može povezati u propusnom modu kada je ugao veći od prihvatnog ugla. |
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| Date | 2017-08-09 |
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| Standards | BAS IEC 60050-731:2017 |
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