The difference between optical cable and optical fiber:

1. The difference between composition and use:

(1) In layman's terms, each core is called an optical fiber, and the multi-core optical fiber combined into one cable is called an optical cable.

(2) Optical cables are mainly composed of optical fibers (glass filaments as thin as hair), plastic protective sleeves and plastic sheaths. Optical cable is a kind of communication line in which a certain number of optical fibers form a cable core according to a certain method, which is covered with a sheath, and some are also covered with an outer sheath to realize optical signal transmission.

That is: a cable formed by an optical fiber (optical transmission carrier) through a certain process.

(3) The basic structure of optical cable is generally composed of cable core, reinforcing steel wire, filler and sheath, etc. In addition, there are waterproof layer, buffer layer, insulated metal wire and other components as needed.

2. The difference between the propagation efficiency of optical cable and optical fiber:

Optical fiber, scientists have created "internal adhesion method", "MCVD method", "VAD method" to make ultra-high-purity quartz glass, and the efficiency of light transmission of specially-made optical fibers has been significantly improved.

Optical cable, communication optical cable is a kind of communication line in which a certain number of optical fibers form a cable core according to a certain method, which is covered with a sheath, and some are also covered with an outer sheath to realize the transmission of optical signals.