The difference between optical fiber and optical cable
Optical fiber is a thin and soft medium that transmits light beams. Most optical fibers must be covered by several layers of protective structures before use, and the covered cables are called optical cables. Therefore, the optical fiber is the core part of the optical cable, and the optical fiber constitutes the optical cable through the protection of some components and the auxiliary protective layer.

The protective structure of the outer layer of the optical fiber can prevent damage to the optical fiber from the surrounding environment. Optical cable includes optical fiber, buffer layer and coating. Optical fiber is similar to coaxial cable, except that there is no mesh shield. In the center is the glass core through which light propagates.
Optical fibers are usually bundled and protected by a casing. The fiber core is usually a double-layer concentric cylinder with a small cross-sectional area made of quartz glass. It is brittle and easy to break, so an external protective layer is needed. So the difference between them lies in this.
Advantages of optical cable
Fiber optic cables are a new generation of transmission media. Compared with copper media, fiber optic cables have greatly improved in terms of safety, reliability, and network performance. The bandwidth of optical fiber transmission greatly exceeds that of copper cables, and the maximum distance supported is more than two kilometers. Fiber optic cables have the advantages of good resistance to electromagnetic interference, strong confidentiality, high speed, and large transmission capacity.
At present, there are two different types of optical fibers that are more common, namely single-mode optical fibers and multi-mode optical fibers. Multimode fiber is generally used for network connections in the same office building or in a relatively close area. The single-mode optical fiber transmits data with higher quality and longer transmission distance, and is usually used to connect office buildings or geographically dispersed networks. If you use optical fiber and cable as the network transmission medium, you need to add optical transceivers and other equipment.