Chapter 4. Wavelength-Division Multiplexing

This chapter includes the following sections:

  • The Need for Wavelength-Division Multiplexing— This section discusses the original drivers for the development of wavelength-division multiplexing (WDM) technology, including the need for sheer bandwidth.

  • Wavelength-Division Multiplexing— WDM is the process of multiplexing wavelengths of different frequencies onto a single fiber. This operation creates many virtual fibers, each capable of carrying a different signal. WDM fundamentals are discussed in this section.

  • Coarse Wavelength-Division Multiplexing— This section discusses coarse wavelength-division multiplexing (CWDM). CWDM systems are suited for the short-haul transport of data, voice, video, storage, ...

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