| 摘要 |
<P>PROBLEM TO BE SOLVED: To compute an effective bandwidth well representative of a power penalty at a given bit error rate. <P>SOLUTION: A method of assessing the power penalty at a given bit error rate of a multimode fiber includes: measuring a set of elementary fiber responses corresponding to different offset launches of light over a core radius into the multimode fiber; generating a global fiber response by applying, to the set of elementary fiber responses, a set of weighting coefficients and delays depending on the different offset launches of the elementary fiber responses; and computing a parameter representative of a fiber power penalty from the global fiber response. The set of weighting coefficients includes several subsets of weighting coefficients time-delayed relative to one another, and at least one relative time delay is not set to zero, and weighting coefficients of each subset depend on the different offset launches of the elementary fiber responses. <P>COPYRIGHT: (C)2013,JPO&INPIT |
