Thesis On Dwdm

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However, these networks still perform the switching of data in the electronic domain though the transmission of data is done in the optical domain.

Finally we have the third generation networks that employ Wavelength Division Multiplexing technology.

They do both the transmission and the switching of data in the optical domain.

This has resulted in the onset of tremendous amount of bandwidth availability.

First generation networks use copper-based or microwave technologies e.g Ethernet, satellites etc.

In second generation networks, these copper links or microwave links with optical fibers.

The paper talks about the various optical network architectures and the various components of an all-optical network like Optical Amplifiers, Optical Add/Drop Multiplexors, Optical Splitters etc.

Important optical networking concepts like wavelength routing and wavelength conversion are explained in detail.

The most important components of any DWDM system are transmitters, receivers, Erbium-doped fiber Amplifiers, DWDM multiplexors and DWDM demultiplexors.

Fig 1 gives the structure of a typical DWDM system.

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