| 摘要 |
The invention concerns a method of assessing power penalty at a given bit error rate of a multimode fiber (4), comprising at least a step (S1) of differential mode delay measurement, measuring a set of elementary fiber responses corresponding respectively to different offset launches (r) of light over the core radius into multimode fiber (4), a step (S2) of generating a global fiber response by applying, to the set of elementary fiber responses, a set of weighting coefficients and delays respectively depending on the different offset launches (r) of the elementary fiber responses, a step (S5) of computing a parameter representative of a fiber power penalty from the global fiber response, wherein, in the step of generating a global fiber response, the set of weighting coefficients includes several subsets (W(r, 1) to W(r, 6)) of weighting coefficients being time delayed relatively to one another, with at least one relative time delay that is not set to zero, weighting coefficients of each subset respectively depending on the different offset launches (r) of the elementary fiber responses. |
