IEC 61300-3-43:2009 pdf free download Dispositifs d’interconnexion et composants passifs fibroniques – Procédures fondamentales d’essais et de mesures – Partie 3-43: Examens et mesures – Mesure de la fonction de transfert modal pour sources fibroniques
1 scope
This part of lEC 61300 describes the method for measuring the mode transfer function(MTF)to be used in characterising the launch conditions for measurements of attenuation and orreturn loss of multimode passive components.The MTF may be measured at the operationalwavelengths.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references,only the edition cited applies.For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 61300-1，Fibre optic interconnecting devices and passive components – Basic test andmeasurement procedures – Part 1: General and guidance
IEC 61300-3-4，Fibre optic interconnecting devices and passive components – Basic test andmeasurement procedures – Part 3-4: Examination and measurements – Attenuation
IEC 60793-1-20，Optical fibres – Part 1-20: Measurement methods and test procedures -Fibre geometry
3 General description
The modal distribution launched into multimode fibre can vary widely with different lightsources. This variation in launched modal distribution can result in significant differences inmeasured attenuation in the same component.The MTF test method gives information aboutthe launched modal distribution (LMD) condition in a measured component. The MTF testmethod is based on a measurement of the near-field intensity distribution in the fibre [1],[2]1.
4Theory
For a fibre with a power-law index profile n(r). given by,
IEC 61300-3-43:2009 pdf free download
