Trent's+a+noob+Marks+Fiber+Optic

Fiber optics is used primarily in modern times for communications technology. Light is kept within the core of Fiber Optic cables through total internal refraction, allowing for the cable to act as a wave guide for the signals that allow for the transfer of electronic information. Optical fibers come as either single mode or multi mode fibers. Single mode fibers are used for communications lines longer than 550 feet, whereas Multi mode fibers, (due to their increased diameter and ability to handle more power and higher bandwidths), are used for short range communications links and links that require higher bandwidths.