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sklademVydáno: 2017-02-07
IEC 60793-1-60:2017
Optical fibres - Part 1-60: Measurement methods and test procedures - Beat length
Fibres optiques - Partie 1-60: Méthodes de mesure et procédures d'essai - Longueur de battement
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| Označení normy: | IEC 60793-1-60:2017 |
| Vydáno: | 2017-02-07 |
| Jazyk: | Anglicky |
DESCRIPTION
IEC 60793-1-60:2017
IEC 60793-1-60:2017 defines test methods for both the phase beat length, and the group beat length. These two parameters are defined differently, and will give different results depending on the type of polarization-maintaining (PM) fibre. The phase beat length is the relevant parameter for the fibres ability to maintain a high extinction ratio. This is described in more details in Annexes A and B.