Chromatic Dispersion Estimation in Digital Coherent Receivers

Ruben Andres Soriano, Fabian N. Hauske, Neil Guerrero Gonzalez, Zhuhong Zhang, Yabin Ye, Idelfonso Tafur Monroy

Research output: Contribution to journalJournal articleResearchpeer-review


Polarization-diverse coherent demodulation allows to compensate large values of accumulated linear distortion by digital signal processing. In particular, in uncompensated links without optical dispersion compensation, the parameter of the residual chromatic dispersion (CD) is vital to set the according digital filtering function. We present different non-data-aided (blind) CD estimation methods for single-carrier transmission under implementation constraint conditions such as bandwidth limitation and sampling rate. The estimation performance for various modulation formats is compared with respect to precision and robustness for a wide range of combined channel impairments.
Original languageEnglish
JournalJournal of Lightwave Technology
Issue number11
Pages (from-to)1627-1637
Publication statusPublished - 2011


  • Chromatic dispersion (CD)
  • Digital coherent receiver
  • Optical performance monitoring (OPM)


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