Third-Order Non-Linearity Reduction In A Bidirectional Catv/Rof Hybrid Transmission System Using Incoherent Light Injection And Rf Amplifier Pre-Distortion
IET COMMUNICATIONS（2019）
Abstract
We propose and experimentally demonstrate a bidirectional Community Antenna Television/radio-over-fibre (RoF) hybrid transmission system based on incoherent light injection and RF amplifier pre-distortion to reduce third-order non-linearity. At downlink, 10-Gbps/30-GHz data and 79 CATV channels are transmitted over 50 km single-mode fibre (SMF), and at uplink 5-Gbps/15-GHz data and CATV signals are successfully transmitted concurrently over 50 km through the same SMF. The authors have found low bit-error rate (BER) and clear eye diagrams for the RoF data signals, and obtained outstanding transmission performance in terms of carrier-to-noise ratio, composite second order, and composite triple-beat for the CATV signals in downlink and uplink transmission.
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Key words
optical fibre networks, community antenna television, radio-over-fibre, cable television, optical communication equipment, error statistics, radiofrequency amplifiers, single-mode fibre, SMF, CATV signals, RoF data signals, composite second order, uplink transmission, bidirectional CATV, RoF, incoherent light injection, RF amplifier pre-distortion, transmission performance, downlink transmission, third-order nonlinearity reduction, radio-over-fibre hybrid transmission system, low bit-error rate, carrier-to-noise ratio, composite triple-beat, clear eye diagrams, bit rate 10 Gbit, s, bit rate 5 Gbit, s, frequency 30 GHz, frequency 15 GHz
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