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Influence of multimode fiber frequency response variations on subcarrier multiplexing

In this paper the influence of environmental conditions on subcarrier multiplexing in multimode fibers (MMF) is investigated. Measurements of fiber's frequency response variations due to external stress imposed on the fiber are presented. On the basis of measurements numerical simulations of subcarrier modulated transmission are performed. Eye diagram and BER degradation with respect to a measured variation in the frequency response is investigated.