APL Photonics (Apr 2020)

Real-time machine learning based fiber-induced nonlinearity compensation in energy-efficient coherent optical networks

  • Elias Giacoumidis,
  • Yi Lin,
  • Michaela Blott,
  • Liam P. Barry

DOI
https://doi.org/10.1063/1.5140609
Journal volume & issue
Vol. 5, no. 4
pp. 041301 – 041301-5

Abstract

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We experimentally demonstrate the world’s first field-programmable gate-array-based real-time fiber nonlinearity compensator (NLC) using sparse K-means++ machine learning clustering in an energy-efficient 40-Gb/s 16-quadrature amplitude modulated self-coherent optical system. Our real-time NLC shows up to 3 dB improvement in Q-factor compared to linear equalization at 50 km of transmission.