- An optical fiber cable, also known as fiber optic cable, is a cable containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed.
(1) Low loss
- Optical fiber features low loss compared either to the metallic, balanced paired cable or coaxial cable using copper.
- (2) Wide band
- Optical fiber can transmit signals at far higher frequencies than coaxial cable, although the frequency range depends on the fiber type.
- (3) Short diameter and lightweight
- Optical fiber is narrower and lighter than other transmission media. Compared to 18-core coaxial cable, for example, the 18-core optical cable is about 1/10 in sectional area and about 1/30 in weight. Optical cable, when compared to conventional metallic cable with the same outside diameter, can accommodate more conductors and is advantageous in terms of installation.
- (4) Non-inductive
- Since glass such as quartz does not conduct electricity, optical fiber is free of noise resulting from electromagnetic induction from external objects (such as high-tension cables, TV sets, and radios).