A 128-Gb/s (downstream)/10-Gb/s (upstream) bi-directional fiber-invisible laser light communication (IVLLC) convergence with parallel/orthogonally polarized dual-sideband operation and two reflective semiconductor optical amplifiers (RSOAs) scheme is proposed and practically demonstrated. To the best of our knowledge, this study is the first one that adopts parallel/orthogonally polarized dual-sideband operation and two RSOAs scheme in a bi-directional fiber-IVLLC convergence. For downlink transmission, the channel capacity is increased to four times by way of vestigial sideband (VSB)-four-level pulse amplitude modulation (PAM4) modulation and parallel/orthogonally polarized dual-sideband operation [1–2]. For uplink transmission, the upstream performance presents apparent enhancement by means of two RSOAs scheme [3] to effectively erase the modulated data.

© 2019 IEEE

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