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Single-carrier photonic wireless transmission at 31 GHz and 8.0 Gbaud with 64QAM is successfully achieved with error-free operation. A newly developed wide bandwidth high power photodetector and a pre-equalizing subsystem are presented.
We propose an architecture of the radio-over-fiber systems for train communication networks. Prediction-based dynamic optical routing can track the train cars by train location information. High spectral-efficient millimeter-wave signal modulation and demodulation are also discussed with the modulation format and its configuration of the frequency conversions in the paper.
We report 22.4Gbps photonic wireless transmission at a low optical received power level in 1km optical fiber. In the 1m wireless transmission demonstration (6Gbaud, 16QAM), a new high-sensitivity photoreceiver and a new calibration software technique have been developed.
Error-free polarization division multiplexed (PDM) 10-Gbps × 2-PDM transmission over a 3.7-km-long holey fiber in the 1-μm waveband, which are shown to be capable of 8.4-THz bandwidth transmission, is successfully demonstrated for the first time.
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