$50
CEI EN 60793-1-43
2015
Optical fibres Part 1-43: Measurement methods and test procedures – Numerical aperture measurement
- Format:
- Language(s) :
- Published :
- English
- 11/01/2015
This part of IEC 60793 establishes uniform requirements for measuring the numerical aperture of optical fibre, thereby assisting in the inspection of fibres and cables for commercial purposes.
The numerical aperture (NA) of categories A1, A2, A3 and A4 multimode fibre is an important parameter that describes a fibre's light-gathering ability. It is used to predict launching efficiency, joint loss at splices, and micro/macrobending performance.
The numerical aperture is defined by measuring the far-field pattern (NAff). In some cases the theoretical numerical aperture (NAth) is used in the literature, which can be determined from measuring the difference in refractive indexes between the core and cladding. Ideally these two methods should produce the same value.
| CEI EN 60793-1-43 | |
|---|---|
| STANDARD INFO: | |
| Standard Name | CEI EN 60793-1-43 |
| Scope | Optical fibres Part 1-43: Measurement methods and test procedures - Numerical aperture measurement |
| Publisher | CEI - Comitato Elettrotecnico Italiano |
| Languages | English |
| State | [ Active ] |
| Publication Year | 2015 |
| Most recent Version | MOST RECENT |
| Whether to be replaced | |
| Addendum | |
| FILE INFO: | |
| Edition | 15 |
| File Size | 1 file , 420 KB |
| Number of Pages | 26 |
| Published | 11/01/2015 |
| CEI EN 60793-1-43 | ||
|---|---|---|
| History | Publisher Year | |
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