Based on the phenomenon of "total internal reflection" fiber optic technology enables information to travel in a beam of light through the glass core of an optical fiber. The enormous bandwidth capacity of a fiber optic cable enables it to carry much more information than its copper wire counterpart.

Telephone conversations, computer data, video transmissions, and high-speed Internet can all be carried simultaneously over a single fiber that's about the thickness of a human hair. Fiber Optic systems are also highly tamper-resistant, which makes the technology ideally suited for security applications.