Toward terabit-per-second capacities over multimode fiber links using SCM/WDM techniques

E. J. Tyler, P. Kourtessis, M. Webster, E. Rochart, T. Quinlan, S. E M Dudley, S. D. Walker, R. V. Penty, I. H. White

Research output: Contribution to journalArticlepeer-review

64 Citations (SciVal)


This paper outlines the progress made on the use of subcarrier multiplexing (SCM) for high-speed datacommunications links over multimode fiber. Results include the demonstration of penalty-free transmission of 2.5 Gb/s data over worst case multimode fiber (MMF). A complete link demonstration of an SCM transmission system is reported, based on a quadrature phase-shift keying modulator and demodulator capable of a record 5.1 Gb/s per subcarrier data transmission. Superior performance compared with conventional baseband modulation techniques is shown. It is also demonstrated that when SCM is combined with dense wavelength-division multiplexing (WDM), aggregate data capacity of 200 Gb/s is feasible. Preliminary results demonstrate the possibility of 20-GHz WDM channel spacings, which if scaled show the potential for 1-Tb/s aggregate rates with a bandwidth-length product of 3 Tb/s·km.

Original languageEnglish
Pages (from-to)3237-3243
Number of pages7
JournalJournal of Lightwave Technology
Issue number12
Publication statusPublished - 1 Dec 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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