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Fiber Optic Networks

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Fiber Optic Networks. What Is Fiber Optic Communication ?. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of Light through an Optical Fiber. Fiber Optic Cable Explained. How does it work?.

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what is fiber optic communication
What Is Fiber Optic Communication ?
  • Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of Light through an Optical Fiber.
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How does it work?

  • The light forms an electromagnetic carrier wave that is modulated to carry information
the process of communicating using fiber optics involves the following basic steps
The process of communicating using fiber-optics involves the following basic steps:
  • Creating the optical signal involving the use of a transmitter
  • relaying the signal along the fiber
  • ensuring that the signal does not become too distorted or weak
  • receiving the optical signal
  • and converting it into an electrical signal
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Over the last 20 years or so, fiber optic lines have taken over and transformed the long distance telephone industry.

  • When fiber replaces copper for long distance calls and Internet traffic, it dramatically lowers costs.
  • Optical fibers are also a huge part of making the Internet available around the world.
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To understand how a fiber optic cable works:

  • Imagine a pipe that is several miles long
  • Now imagine that the inside surface of the pipe has been coated with a perfect mirror
  • Now imagine that you are looking into one end of the pipe. Several miles away at the other end, a friend turns on a flashlight and shines it into the pipe.
  • Because the interior of the pipe is a perfect mirror, the flashlight\'s light will reflect off the sides of the pipe and you will see it at the other end.
  • If your friend were to turn the flashlight on and off in a morse code fashion, your friend could communicate with you through the pipe.
  • That is the essence of a fiber optic cable.
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