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40 Gbit/s ETDM for Multi Terabit/s Long Haul WDM Transmission

Peter M. KRUMMRICH, Erich GOTTWALD, Nancy E. HECKER, Claus-Jorg WEISKE, Andreas SCHOPFLIN, Andreas FARBERT, Klaus KOTTEN

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Summary :

Channel bit rates of 40 Gbit/s are the next step after 2.5 and 10 Gbit/s in the SONET/SDH hierarchy. They enable multi Tbit/s transmission of live traffic over a single fiber. All recent optical transmission records concerning aggregate capacitiy per fiber were achieved using this technology. Comparing the limiting effects of 2.5, 10 and 40 Gbit/s system configurations reveals that 40 Gbit/s allows for the longest regenerator free distance on NZDSF. In this paper we describe transmitter and receiver designs as well as results from field trials. The first trial demonstrated a transmission of live traffic with a record aggregate capacity of 3.2 Tbit/s, whereas the second successfully demonstrated a doubling of the channel capacity to 80 Gbit/s using polarization multiplexing with automated polarization control.

Publication
IEICE TRANSACTIONS on Communications Vol.E85-B No.2 pp.366-373
Publication Date
2002/02/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
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