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Optical Networks, 3rd Edition by Galen Sasaki, Kumar Sivarajan, Rajiv Ramaswami

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chapter 3

Components

IN THIS CHAPTER, we will discuss the physical principles behind the operation of the most important components of optical communication systems. For each component, we will give a simple descriptive treatment followed by a more detailed mathematical treatment.

The components used in modern optical networks include couplers, lasers, photodetectors, optical amplifiers, optical switches, and filters and multiplexers. Couplers are simple components used to combine or split optical signals. After describing couplers, we will cover filters and multiplexers, which are used to multiplex and demultiplex signals at different wavelengths in WDM systems. We then describe various types of optical amplifiers, which are key elements used ...

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