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Fiber Optic Networking

ALSO CALLED: Fibre, Fiber Optics, and Optical Networking
DEFINITION: A reconfigurable optical add-drop multiplexer (ROADM) is a device that can add, block, pass or redirect modulated infrared (IR) and visible light beams of various wavelengths in a fiber optic network. ROADMs are used in systems that employ wavelength  … 
Definition continues below.


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FIBER OPTIC NETWORKING DEFINITION (continued): …  division multiplexing.

Before the development of optical multiplexing devices such as ROADMs, signal routing in fiber optic networks was done by converting the IR or visible beams to electrical signals and routing those signals using conventional electronic switches. The rerouted electrical signals were then converted back into IR or visible beams.

In a conventional ROADM, switching is accomplished without optical-to-electrical or electrical-to-optical conversion … 
Fiber Optic Networking definition sponsored by SearchTelecom.com, powered by WhatIs.com an online computer dictionary



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