High-Order Modulation Formats for Future Optical Communication Systems

  • André L. N. SouzaEmail author
  • José Hélio da C. Júnior
Part of the Telecommunications and Information Technology book series (TIT)


Transceivers must evolve to cope with the ever-increasing traffic demand on optical networks. Some of their new features include using high-order modulation formats combined with more complex forward error correcting codes, nonlinear compensation, and probabilistic shaping. Beyond performance enhancement, power consumption is also an issue. This chapter focuses on some simulation results of using supervised phase recovery algorithm for complexity and power consumption reduction and experimental results on probabilistic shaping for performance enhancement.


Higher Order Modulation Formats (HOMFs) Probabilistic Shaping (PS) Phase Recovery Algorithm Optical Signal-to-noise Ratio (OSNR) Lower OSNRs 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was partially supported by FUNTTEL/FINEP and by Sao Paulo Research Foundation (FAPESP), grant no. 2015/25513-6.

The authors thank Dr. Giovanni Beninca de Farias for reviewing a draft of this chapter.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • André L. N. Souza
    • 1
    Email author
  • José Hélio da C. Júnior
    • 1
  1. 1.Optical Technologies DivisionCPqDCampinasBrazil

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