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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 29, Iss. 4 — Feb. 15, 2011
  • pp: 571–577

64-Tb/s, 8 b/s/Hz, PDM-36QAM Transmission Over 320 km Using Both Pre- and Post-Transmission Digital Signal Processing

Xiang Zhou, Jianjun Yu, Ming-Fang Huang, Yin Shao, Ting Wang, Lynn Nelson, Peter Magill, Martin Birk, Peter I. Borel, David W. Peckham, Robert Lingle, and Benyuan Zhu

Journal of Lightwave Technology, Vol. 29, Issue 4, pp. 571-577 (2011)


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Abstract

We report the successful transmission of 64 Tb/s capacity (640$\,\times\,$107 Gb/s with 12.5 GHz channel spacing) over 320 km reach utilizing 8-THz of spectrum in the ${\rm C}+{\rm L}$-bands at a net spectral efficiency of 8 bit/s/Hz. Such a result is accomplished by the use of raised-cosine pulse-shaped PDM-36QAM modulation, intradyne detection, both pre- and post-transmission digital equalization, and ultra-large-area fiber. We discuss in detail the digital modulation technology and signal processing algorithms used in the experiment, including a new two-stage, blind frequency-search-based frequency-offset estimation algorithm and a more computationally efficient carrier-phase recovery algorithm.

© 2011 IEEE

Citation
Xiang Zhou, Jianjun Yu, Ming-Fang Huang, Yin Shao, Ting Wang, Lynn Nelson, Peter Magill, Martin Birk, Peter I. Borel, David W. Peckham, Robert Lingle, and Benyuan Zhu, "64-Tb/s, 8 b/s/Hz, PDM-36QAM Transmission Over 320 km Using Both Pre- and Post-Transmission Digital Signal Processing," J. Lightwave Technol. 29, 571-577 (2011)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-29-4-571

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