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Conferences > ECEOC > 2022 > We1C > We1C.3
  • European Conference on Optical Communication (ECOC) 2022
  • Technical Digest Series (Optica Publishing Group, 2022),
  • paper We1C.3

Improving Nonlinearity Tolerance of PCS-QAM Digital Multi-Carrier Systems Through Symbol Rate Optimization

Abel Lorences-Riesgo, Manuel S. Neves, Celestino S. Martins, Sami Mumtaz, Pedro A. Loureiro, Yann Frignac, Paulo P. Monteiro, Gabriel Charlet, Fernando P. Guiomar, and Stefanos Dris

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Abstract

We experimentally demonstrate that symbol-rate optimization (SRO) provides nonlinear gains in multi-carrier systems, even with PCS modulation and realistic DSP. Optimized carrier phase recovery is crucial to achieving 0.2 dB gain for 1400 km 800G transmission, out of the ∼0.7 dB theoretical maximum gain we measured.

© 2022 The Author(s)

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