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Functional splitting in next-generation mobile networks enables new opportunities for millimeter wave radio over fiber systems. Since a cell-free network architecture is a possible way to enable uniform high data rates, we propose a scalable optical full-duplex crosshaul with simplified radio units, where a low-cost directly modulated laser transmits a 1.5 GHz intermediate frequency uplink signal.
Abstract We present a hybrid radiofrequency and microwave photonic link at 25 GHz using the chromatic dispersion of an optical fiber to steer the beam of a three-element planar dipole-based phased antenna array (PAA). Our team has designed and developed an in-house built PAA, experimentally verified its parameters, and successfully demonstrated optically controlled beam steering as measured in an anechoic chamber.
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