Abstract
We propose a reach-extended self-homodyne coherent bidirectional system utilizing gain-clamped SOA as both linear-booster signal amplifier and LO regenerator. Successful 400G transmissions over 50-km and 75-km links are demonstrated with simple maximum-likelihood phase recovery, yielding a cost-efficient solution for future inter-datacentre interconnects.
© 2022 The Author(s)
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