Polarization-multiplexed, 10Gsymbol/s, 64QAM coherent transmission over 150km with OPLL-based homodyne detection employing narrow linewidth LDs

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Abstract

We report a polarization-multiplexed 10 Gsymbol/s, 64QAM (120 Gbit/s) coherent transmission over 150km by using an optical phase-locked loop (OPLL) circuit employing narrow linewidth LDs. The OPLL realized low phase noise demodulation of 64QAM signal. As a result, 120 Gbit/s data signal were transmitted with a bit error rate (BER) performance below a forward error correction (FEC) threshold of 2 × 10-3.

Original languageEnglish
Pages (from-to)1444-1449
Number of pages6
JournalIEICE Electronics Express
Volume8
Issue number17
DOIs
Publication statusPublished - 2011 Sep 10

Keywords

  • Coherent transmission
  • Laser diode
  • Optical phase-locked loop
  • QAM

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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