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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 28, Iss. 1 — Jan. 1, 2010
  • pp: 91–96

Quadrature Duobinary for High-Spectral Efficiency 100G Transmission

Ilya Lyubomirsky

Journal of Lightwave Technology, Vol. 28, Issue 1, pp. 91-96 (2010)


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Abstract

This paper proposes and analyzes a quadrature duobinary modulation format with coherent detection for high-spectral efficiency wavelength-division-multiplexing transmission systems at 112 Gb/s per channel. A practical system design of a dual polarization quadrature duobinary (DP-QDB) format with coherent heterodyne detection is analyzed and compared with the DP-differential quadrature phase-shift keying format for feasibility of 112 Gb/s transmission. Using simulation analysis, we show that the relatively narrow spectrum of quadrature duobinary modulation provides an effective practical means for realizing high-spectral efficiency transmission, approaching the theoretical limit of 4 bits/s/Hz, while also providing excellent tolerance to optical filter cascades for a robust optical networking functionality.

© 2009 IEEE

Citation
Ilya Lyubomirsky, "Quadrature Duobinary for High-Spectral Efficiency 100G Transmission," J. Lightwave Technol. 28, 91-96 (2010)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-28-1-91

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