what are fiber optical wires used for and what do they do.?

Answer 1

optical fiber

- Optical fiber (or "fiber optic") refers to the medium and the technology associated with the transmission of information as light pulses along a glass or plastic wire or fiber. Optical fiber carries much more information than conventional copper wire and is in general not subject to electromagnetic interference and the need to retransmit signals. Most telephone company long-distance lines are now of optical fiber.
Transmission on optical fiber wire requires repeaters at distance intervals. The glass fiber requires more protection within an outer cable than copper. For these reasons and because the installation of any new wiring is labor-intensive, few communities yet have optical fiber wires or cables from the phone company's branch office to local customers (known as local loops).

A type of fiber known as single mode fiber is used for longer distances; multimode fiber fiber is used for shorter distances.


LAST UPDATED: 20 Feb 2003

Easy yo!!!!! IoI

Answer 2

First of all, fiber optics uses cables, not wires. It is important to make the distinction because they transmit light, not electricity. Fiber optic cables relay information by sending light patterns through the cable. The thing that makes them so valuable is that they can be as small as a strand of hair and carry more information than any other type of connector. They also carry the information at the speed of light (since that is what they are sending/receiving).
Telecommunication companies are attempting to use fiber optics to create a digital communication network. Soon, you could have one cable that does your television, Internet, phone, etc all in digital quality. The cables are flexible, easy to repair and don't wear out over time like electric cables do.
The computer industry is attempting to use fiber optics to increase the speed of information transfers and decrease the amount of time between calculations.
The audio industry uses a fiber optic cable to run digital sound. Most DVD players and receivers have optical inputs/outputs built in. The biggest advantage is that the audio remains in a digital format and won't pick up distortion from magnetic or electric fields.
Think of where you have a wire that transfers information. That wire could very easily be replaced with a fiber optic cable in the near future.

Answer 3

in a home theater they are used for the sound quality they are impervious to rf interference so you get a better quality of sound