How Do Fiber Optic Networks Work?
Transducer/Transmitter Light-emitting diodes (LEDs) and laser diodes, which produce energy by the action of electrons falling into holes (the absence of electrons) at a positive/negative junction (at an anode/cathode site), are the two most common transmitters in optical communications networks. These work to transfer an electric signal into a light signal (electro-optical transduction). The produced signal is modulated to carry information over optical fibers. Optical fibers Optical fibers are glass (or sometimes plastic, in other applications) fibers that serve to conduct the information through a fiber optic network. The flexible fibers can be bundled together, and a fiber optic network can operate at higher bandwidths than other forms of communicating information. Because these glass fibers experience low attenuation (the loss in intensity of a signal, which is corrected in this type of system with an optical amplifier) and also low interference, they are highly efficient for use i
