This work deals with equalized multilevel transmission schemes for polymer optical fiber (POF) systems. Especially the standard 1 mm step-index PMMA-based POF (SI-POF) is investigated. Therefore a fiber model is developed, which includes the three major fiber effects, such as mode-dependent attenuation, modal dispersion and mode coupling. As only intensity modulation can be applied, multi-level modulation is combined with receiver equalization schemes to overcome the bandwidth limitations due to modal dispersion and the active components. This combination is evaluated in terms of theoretical equalizer bounds and various experiments. It is shown that record bit-rates of up to 2 Gbit/s over 100 m SI-POF can be achieved by the use of this combination and a laser diode. Finally, a full working Gigabit Ethernet media converter is implemented on a FPGA platform using a red LED, PAM-4 modulation and linear receiver equalization.
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This work deals with equalized multilevel transmission schemes for polymer optical fiber (POF) systems. Especially the standard 1 mm step-index PMMA-based POF (SI-POF) is investigated. Therefore a fiber model is developed, which includes the three major fiber effects, such as mode-dependent attenuation, modal dispersion and mode coupling. As only intensity modulation can be applied, multi-level modulation is combined with receiver equalization schemes to overcome the bandwidth limitations due to...
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