Fiber-Wireless-Fiber Link for 100-Gb/s PDM-QPSK Signal Transmission at W-Band

We propose and experimentally demonstrate a W-band seamlessly-integrated fiber-wireless-fiber system enabled by photonic millimeter-wave generation and demodulation techniques, in which up to 109.6-Gb/s polarization division multiplexing quadrature phase shift keying signal can be first transmitted over 80-km single-mode fiber-28 (SMF-28), then delivered over a 2-m 2 × 2 multiple-input multiple-output wireless link at 95 GHz and finally transmitted over another 80-km SMF-28 with a bit-error ratio less than the third-generation forward-error-correction limitation of 2 × 10². The proposed fiber-wireless-fiber integration system has throughput comparable with that of fiber-optic communication and is suited to emergency back-up communications.