OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 28, Iss. 4 — Feb. 15, 2010
  • pp: 406–414

Highly Spectrally Efficient DWDM Transmission at 7.0 b/s/Hz Using 8$\,\times\,$65.1-Gb/s Coherent PDM-OFDM

Hidenori Takahashi, Abdullah Al Amin, Sander L. Jansen, Itsuro Morita, and Hideaki Tanaka

Journal of Lightwave Technology, Vol. 28, Issue 4, pp. 406-414 (2010)


View Full Text Article

Acrobat PDF (976 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

In this paper, we discuss the realization of wavelength-division multiplexing (WDM) transmission at high spectral efficiency. For this experiment, coherent polarization-division multiplexing--orthogonal frequency-division multiplexing (PDM-OFDM) is used as a modulation format. PDM-OFDM uses training symbols for channel estimation. This makes OFDM easily scalable to higher level modulation formats as channel estimation is realized with training symbols that are independent of the constellation size. Furthermore, because of its well-defined spectrum OFDM requires only a small guard band between WDM channels. The dependence of the number of OFDM subcarriers is investigated with respect to the interchannel linear crosstalk. At a constant data rate the number of OFDM subcarriers is estimated to achieve lower linear crosstalk in order to achieve higher spectral efficiency. We then experimentally demonstrate dense WDM (DWDM) transmission with 7.0-b/s/Hz net spectral efficiency using 8$\,\times\,$65.1-Gb/s coherent PDM-OFDM signals with 8-GHz WDM channel spacing utilizing 32-quadrature-amplitude-modulation subcarrier modulation. Successful transmission is achieved over 240 km standard single-mode fiber (SSMF) spans with hybrid erbium-doped fiber amplifiers/Raman amplification.

© 2010 IEEE

Citation
Hidenori Takahashi, Abdullah Al Amin, Sander L. Jansen, Itsuro Morita, and Hideaki Tanaka, "Highly Spectrally Efficient DWDM Transmission at 7.0 b/s/Hz Using 8$\,\times\,$65.1-Gb/s Coherent PDM-OFDM," J. Lightwave Technol. 28, 406-414 (2010)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-28-4-406

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited