Fremgangsmåde til valg af en optisk multimode-fiber, der er ufølsom over for bøjningstab

摘要

The invention provides a method of selecting from a plurality of multimode optical fibers one or more multimode optical fibers in which respective modal bandwidths depend on the bending to which the fiber is subjected. For each fiber, the method comprises steps of:
· determining (100) a first modal bandwidth value BW when the fiber is not bent;
· determining (101) a second modal bandwidth value bBW when the fiber is bent; and
· selecting (102) the fibers for which said second value bBW is above a bandwidth threshold A, said threshold A being greater than the first value BW and being a function of said first modal bandwidth value BW and a predetermined bending losses value BL.