Experimental demonstration of the maximum likelihood-based chromatic dispersion estimator for coherent receivers

Publication: Research - peer-reviewJournal article – Annual report year: 2014

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We perform an experimental investigation of a maximum likelihood-based (ML-based) algorithm for bulk chromatic dispersion estimation for digital coherent receivers operating in uncompensated optical networks. We demonstrate the robustness of the method at low optical signal-to-noise ratio (OSNR) and against differential group delay (DGD) in an experiment involving 112Gbit/s polarization-division multiplexed (PDM) 16-ary quadrature amplitude modulation (16QAM) and quaternary phase-shift keying (QPSK).
Original languageEnglish
JournalOptical Fiber Technology
Volume20
Issue number2
Pages (from-to)158-162
ISSN1068-5200
DOIs
StatePublished - 2014
CitationsWeb of Science® Times Cited: 3

    Keywords

  • Chromatic dispersion, Optical performance monitoring, Maximum likelihood, Digital signal processing, 16QAM, QPSK
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