March 10, 2006

Generation and transmission of 21.4-Gbaud PDM 64-QAM using a high-power DAC driving a single I/Q modulator

  • Charlet G.
  • Dupuy J.
  • Gnauck A.
  • Jorge F.
  • Konczykowska A.
  • Peckham D.
  • Riet M.
  • Winzer P.
  • Zhu B.

We generate a 21.4-Gbaud PDM 64-QAM (256.8-Gb/s line rate) signal using a single I/Q modulator driven by 8-level electrical waveforms from a novel high-power digital-to-analog converter. We demonstrate coherent-detection performance within 5 dB of the theoretical limit at a bit-error rate of 1×10-3, and achieve transmission over 400 km of ultra-large-area fiber. ©2011 Optical Society of America

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