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Next-Generation Network Services by Robert Wood

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Chapter 7. Long-Haul Optical Networks

This chapter covers the following topics:

Light has an information-carrying capacity that is 10,000 times greater than the highest radio frequencies in the electromagnetic spectrum. Nowhere is capacity more important than in long-haul networks, where communications converge between great masses of people. Since the 1980s, long-haul networks have followed the light to create today’s capacious long-haul optical networks.

Long-haul optical networks benefit from two complementary ascendancies: the speed of optical modulation and the density of ...

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