O-band 12-Gb/s FDM-WDM PON transmission exploiting self-seeding in reflective semiconductor optical amplifiers

Abstract

WDM-PON colourless transmitters based on RSOA self-seeding (SS) proved to be compact self-tuning\ud transceivers up to 10 Gb/s. We employ frequency-division multiplexing (FDM) with different subcarrier\ud modulations to effectively exploit a 2-GHz limited O-band RSOA in a SS architecture, achieving, for the first\ud time to the best of our knowledge, 12-Gb/s transmission over 10-km SSMF. Due to O-band low chromatic\ud dispersion, propagation distance is only limited by the power budget, which determines the sub-bands signal to\ud noise ratio, reducing equalization effectiveness.\ud The paper presents sub-bands allocation, measured constellation diagrams and BERs, which demonstrate the\ud promising capability of the combination of FDM and RSOA SS to obtain beyond 10-Gb/s self-tuning WDM\ud PON transmitters