Abstract:In this article we present high spectral efficiency DMT transmissions over 20 m of Step-Index polymethyl methacrylate optical fiber in the visible range. We demonstrated that using illumination light emitting diodes at 450, 520, 560 and 650 nm it is possible to achieve as high as 6.39 bits/s/Hz for a pre-Forward Error Correction target Bit Error Rate of 10 -3 . The 560 nm optical source was developed in our lab and it can be used as a new channel in WDM system.
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