40 Gbit/s upgrades on existing 10 Gbit/s transport infrastructure

Martin Birk; Benny Mikkelsen

doi:10.1117/12.638190

25 October 2005 40 Gbit/s upgrades on existing 10 Gbit/s transport infrastructure

Martin Birk, Benny Mikkelsen

Proceedings Volume 6012, Optical Transmission Systems and Equipment for WDM Networking IV; 60120D (2005) https://doi.org/10.1117/12.638190
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

Increasing the data rates by a factor of four has historically reduced the cost for the transmission of a unit bandwidth by approximately 40%. As the next natural increase in data rate, 40 Gb/s has been the focus of extensively investigation in research and development labs around the world for several years. However, despite the obvious potentials, 40 Gb/s systems have not yet been commercially deployed, in part because 40 Gb/s is associated with a number of misconceptions, e.g., that 40 Gb/s technology is not mature and that the transmission distance is severely limited by fiber dispersion. In this paper we address the practical requirements that 40 Gb/s systems must meet to become commercially deployed. We show that seamless migration of a 10 Gb/s system to 40 Gb/s per channel is possible with correctly designed line cards. Moreover, we discuss the technologies needed to implement different modulation formats, and the corresponding trade-off between complexity/cost of line cards and the achievable fiber transmission distance.

Citation Download Citation

Martin Birk and Benny Mikkelsen "40 Gbit/s upgrades on existing 10 Gbit/s transport infrastructure", Proc. SPIE 6012, Optical Transmission Systems and Equipment for WDM Networking IV, 60120D (25 October 2005); https://doi.org/10.1117/12.638190

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