Abstract
We achieved a 17.57-bit/4Dsymbol information rate with >562-Gb/s net rate based on precisely entropy and code-rate optimized 32-GBaud probabilistically constellation-shaped (PCS-)1024QAM with an ultra-narrow-linewidth 1-Hz laser. A net rate of >542-Gb/s with an optimized PCS-1444QAM-based signal was also demonstrated for 30-km transmission.
© 2022 The Author(s)
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