RIN in optical IM/DD creates signal-dependent noise with memory and polynomial variance; ignoring memory in decoding causes GMI to saturate for dense constellations.
Reach extension of a 53.12 Gbps PAM-4 IM/DD signals with optimized extinction ratio in amplified multi-span O-Band transmission,
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Optical Communications with Relative Intensity Noise: Channel Modeling and Information Rates
RIN in optical IM/DD creates signal-dependent noise with memory and polynomial variance; ignoring memory in decoding causes GMI to saturate for dense constellations.