40G: promise or pipe dream? (Viewpoint).(limitations of optical networking)(Brief Article)(Column)

Fiberoptic Product News, June, 2002 by Berkel, Werner

The high capacity of the fiber optic telecommunications industry faces a new challenge that will determine the next step in the evolution of the network equipment market. Optical networking is critical to the future of telecommunications, and 40 Gb/s transmission rates are key to the future of optical net working; but is the industry ready to take the next step and is there sufficient demand to justify it? The path ahead is far from straightforward.

To begin with, where does demand for optical networking exist? The bottleneck in communications is at the so-called "last mile", i.e., the connection to the end-user households themselves. For example, someone working from home who wants to download graphics or wants to send large amounts of data by e-mail will find...

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