Answers are grounded in this paper and cite their sources.
The first 25 Gbaud/s four‐level pulse amplitude modulation (PAM) of a 1.3 μm directly modulated laser (DML) is achieved and a 10 km transmission over a single‐mode fibre (SMF) with clear eye openings is demonstrated.
No takes yet. Share an insight, caveat, or question.
Kobayashi et al. (2014) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: