Optical equalization of 42.7-Gbaud bandlimited RZ-DQPSK signals

A. H. Gnauck*, C. R. Doerr, P. J. Winzer, T. Kawanishi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We demonstrate the use of an optical equalizer to allow 42.7-Gbaud (85.4-Gb/s) return-to-zero differential quadrature phase-shift keyed signals to better tolerate the narrow optical filtering required in high-spectral-efficiency systems. The equalizer passbands are repetitive, enabling the equalization of multiple channels.

Original languageEnglish
Pages (from-to)1442-1444
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number19
Publication statusPublished - 2007 Oct 1
Externally publishedYes


  • Modulation
  • Optical fiber communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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