Full-duplex fiber-wireless link with 40Gbit/s 16-QAM signals for alternative wired and wireless accesses based on homodyne/heterodyne coherent detection
A full-duplex fiber-wireless link for wired and wireless alternative accesses is proposed. User terminals can choose the way to receive the downlink signal alternatively based on the homo/heterodyne detection. A tunable laser is used to provide the optical local oscillator and the uplink optical carrier at the HONU.
homodyne/heterodyne coherent detection tunable laser fiber-wireless access full-duplex link qam (quadrature amplitude modulation) hybrid optical network unit (honu)