Abstract
Today, network systems require higher bandwidth for applications such as fiber-to-the-home communications. Gigabit passive optical network (GPON) links using a Fabry-Perot laser are attractive solutions for this high-speed network. However, due to the mode partition noise and fiber dispersion, GPON systems suffer from inter-symbol interference (ISI). In this paper, we present an electronic dispersion compensator (EDC) that will improve a 1.25-Gb/s experimental GPON link. The experimental GPON link is simulated and measured with impairment assessment. An analog eye-opening monitor, which captures the quality of the EDC output signal using the tunable delay and the integrator is proposed. The proposed EDC successfully compensates ISI for a given link with a 1.25-Gb/s signal. All circuits are fabricated using a 0.18mum- CMOS process.
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