Carrier recovery algorithms and real-time DSP implementation for coherent receivers

@article{Pfau2014CarrierRA,
  title={Carrier recovery algorithms and real-time DSP implementation for coherent receivers},
  author={Timo Pfau},
  journal={OFC 2014},
  year={2014},
  pages={1-17}
}
Phase noise is the most dynamic distortion in coherent optical transmission systems. In the development of carrier recovery algorithms hardware implementation constraints have to be taken into account. The choice between blind and pilot-based carrier recovery is not obvious. - Blind carrier recovery requires no overhead and achieves maximum phase noise tolerance, but requires differential coding and complex processing. - Pilot-based carrier recovery enables absolute phase detection and simple… CONTINUE READING