Discrete multitone modulation for maximizing transmission rate in step-index plastic optical fibers

S.C. Jeffrey Lee, Florian Breyer, Sebastian Randel, Roberto Gaudino, Gabriella Bosco, Andreas Bluschke, Michael Matthews, Philipp Rietzsch, Rainer Steglich, Henrie P.A. van den Boom, Antonius M.J. Koonen

Research output: Contribution to journalArticleAcademicpeer-review

96 Citations (Scopus)


The use of standard 1-mm core-diameter step-index plastic optical fiber (SI-POF) has so far been mainly limited to distances of up to 100 m and bit-rates in the order of 100 Mbit/s. By use of digital signal processing, transmission performance of such optical links can be improved. Among the different technical solutions proposed, a promising one is based on the use of discrete multitone (DMT) modulation, directly applied to intensity-modulated, direct detection (IM/DD) SI-POF links. This paper presents an overview of DMT over SI-POF and demonstrates how DMT can be used to improve transmission rate in such IM/DD systems. The achievable capacity of an SI-POF channel is first analyzed theoretically and then validated by experimental results. Additionally, first experimental demonstrations of a real-time DMT over SI-POF system are presented and discussed.

Original languageEnglish
Pages (from-to)1503-1513
Number of pages11
JournalJournal of Lightwave Technology
Issue number11
Publication statusPublished - 1 Jun 2009


  • Frequency division multiplexing
  • Multimode waveguides
  • Optical fiber communication
  • Quadrature amplitude modulation (QAM)
  • Signal processing
  • Subcarrier multiplexing


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