Transmission of 32-Tb/s Capacity Over 580 km Using RZ-Shaped PDM-8QAM Modulation Format and Cascaded Multimodulus Blind Equalization Algorithm

Xiang Zhou, Peter Magill, Lynn Nelson, Martin Birk, Guodong Zhang, Jianjun Yu, Ming Fang Huang, Yin Shao, Ting Wang, Milorad Cvijetic, S. Ten, H. B. Matthew, S. K. Mishra

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

In this paper, we propose a novel synthesizing method for high-speed 8-ary quadratic-amplitude modulation (QAM) optical signal generation using commercial optical modulators with binary electrical driving signals. Using this method, we successfully generated 114-Gb/s pulse-duration modulation (PDM)-8QAM optical signals. Intradyne detection of PDM-8QAM optical signals with robust blind polarization demultiplexing has been demonstrated by using a new cascaded multimodulus equalization algorithm. With return-to-zero-shaped PDM-8QAM modulation and the proposed blind polarization demultiplexing algorithm, we demonstrate transmission of a record 32-Tb/s fiber capacity (320 × 114 Gb/s) over 580 km of ultralow-loss single-mode fiber-28 fiber by utilizing C + L-band erbium-doped fiber-amplifier-only optical amplification and single-ended coherent detection technique at an information spectral efficiency of 4.0 bit/s·Hz.

Original languageEnglish (US)
Pages (from-to)456-465
Number of pages10
JournalJournal of Lightwave Technology
Volume28
Issue number4
DOIs
StatePublished - Feb 15 2010

Keywords

  • 8-phase-shift keying (PSK)
  • coherent
  • digital
  • fiber
  • modulation format
  • optical transmission
  • spectral efficiency

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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