Net-bit rate of &gt;562-Gb/s with 32-GBaud Probabilistically Constellation-Shaped 1024QAM Signal Based on Entropy and Code-Rate Optimization

Masanori Nakamura; Fukutaro Hamaoka; Takeo Sasai; Minami Takahashi; Takayuki Kobayashi; Yoshiaki Kisaka; Yutaka Miyamoto

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper We3C.5

Net-bit rate of >562-Gb/s with 32-GBaud Probabilistically Constellation-Shaped 1024QAM Signal Based on Entropy and Code-Rate Optimization

Masanori Nakamura, Fukutaro Hamaoka, Takeo Sasai, Minami Takahashi, Takayuki Kobayashi, Yoshiaki Kisaka, and Yutaka Miyamoto

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Coding and Modulation (We3C)

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M. Nakamura, F. Hamaoka, T. Sasai, M. Takahashi, T. Kobayashi, Y. Kisaka, and Y. Miyamoto, "Net-bit rate of >562-Gb/s with 32-GBaud Probabilistically Constellation-Shaped 1024QAM Signal Based on Entropy and Code-Rate Optimization," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper We3C.5.

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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.

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