121.9-Gb/s PDM-OFDM transmission with 2-b/s/Hz spectral efficiency over 1000 km of SSMF

Sander Lars Jansen*, Itsuro Morita, Tim C.W. Schenk, Hideaki Tanaka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

208 Citations (Scopus)


We discuss optical multi-band orthogonal frequency division multiplexing (OFDM) and show that by using multiple parallel OFDM bands, the required bandwidth of the digital-to-analogue/analogue-to-digital converters and the required cyclic prefix can significantly be reduced. With the help of four OFDM bands and polarization division multiplexing (PDM) we report continuously detectable transmission of 10 × 121.9-Gb/s (112.6-Gb/s without OFDM overhead) at 50-GHz channel spacing over 1,000-km standard single mode fiber (SSMF) without any inline dispersion compensation. In this experiment 8 QAM subcarrier modulation is used which confines the spectrum of the 121.9 Gb/s PDM-OFDM signal within a 22.8 GHz optical bandwidth. Moreover, we propose a digital signal processing method to reduce the matching requirements for the wideband transmitter IQ mixer structures required for PDM-OFDM.

Original languageEnglish
Pages (from-to)177-188
Number of pages12
JournalJournal of Lightwave Technology
Issue number3
Publication statusPublished - 2009 Feb 1
Externally publishedYes


  • Chromatic dispersion compensation
  • Fiber-optic transmission systems
  • Long-haul transmission
  • Orthogonal frequency-division multiplexing (OFDM)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of '121.9-Gb/s PDM-OFDM transmission with 2-b/s/Hz spectral efficiency over 1000 km of SSMF'. Together they form a unique fingerprint.

Cite this