Daffodil International University

Faculties and Departments => Faculty Sections => Faculty Forum => Topic started by: Esrat on January 15, 2015, 02:50:21 PM

Title: What is fiber optics?
Post by: Esrat on January 15, 2015, 02:50:21 PM

A technology that uses glass (or plastic) threads (fibers) to transmit data. A fiber optic cable consists of a bundle of glass threads, each of which is capable of transmitting messages modulated onto light waves.

Fiber optics has several advantages over traditional metal communications lines:

• Fiber optic cables have a much greater bandwidth than metal cables. This means that they can carry more data.
  Fiber optic cables are less susceptible than metal cables to interference.
  Fiber optic cables are much thinner and lighter than metal wires.
  Data can be transmitted digitally (the natural form for computer data) rather than analogically.
  

The main disadvantage of fiber optics is that the cables are expensive to install. In addition, they are more fragile than wire and are difficult to splice.