Intermodulation distortion suppression in a full-duplex radio-on-fiber ring network

A full-duplex radio-on-fiber (ROF) ring network based on electroabsorption modulator (EAM) low bias voltage, RF amplifier predistorter, wavelength-division-multiplexing (WDM), and optical add-drop multiplexing techniques is proposed and demonstrated. Over a long-haul fiber ring network transmission, low third-order intermodulation distortion to carrier ratio (IMD/sub 3//C) and bit error rate (BER) values were obtained in our proposed full-duplex ROF ring network.

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