Applied Sciences (Feb 2019)

MZM Optimization of PAM-4 Transmission in Data Center Interconnect

  • Eduard Sonkin,
  • Dan Sadot,
  • Gilad Katz

DOI
https://doi.org/10.3390/app9040637
Journal volume & issue
Vol. 9, no. 4
p. 637

Abstract

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An analog optimization of 4-level pulse amplitude modulation (PAM-4) signal is proposed, together with maximum likelihood sequence estimation digital signal processing. The proposed optimizations are verified by experimental demonstration at 53 Gbaud, indicating an improvement of 4⁻5 dB in the optical signal to noise sensitivity.

Keywords