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DWDM Network Designs and Engineering Solutions by Tony Antony, Ashwin Gumaste

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Chapter 1. Introduction to Optical Networking

Communication and communication systems have evolved tremendously over the past century. The tremendous growth in demand for bandwidth has led to various premier technologies that facilitate more communication in today's networks.

The need to send more information (data) through a communication medium (channel) is one of the motivating factors for continuous research to invent more efficient communication systems. In the past, both conventional copper and wireless methods were good means of transporting data. They had the limitations of a finite bandwidth and high losses that were proportional with transmitting length. Glass as a possible means of communication was studied and experimentally deployed ...

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