The requirement for increased data transmission rates in data centres (DC) and short-reach systems like passive optical networks (PON) continues relentlessly. Intensity modulation-direct detection (IM/DD) systems are preferred owing to their simple implementation compared to coherent optical systems. Due to increased DC clusters and network centralization, employing semiconductor optical amplifiers (SOA) in short-reach links is prudent owing to their ability for photonic integration, simultaneous multichannel amplification, and offering a small footprint. In this paper, we present the potential application of the SOA in future Terabit/s DC and optical access networks with SOA placed at distinct locations in an optical link and as a device enabling transmission of higher cardinality modulation.
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Venkatasubramani et al. (2024) studied this question.
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