What is fiber optic cable

Fiber optic cable,  is an Ethernet cable consisting of one or more optical fibers used to transmit data. Fiber-optic cables transmit data when light pulses pass through tiny glass tubes, and the transmission capacity of fiber-optic cables is 26,000 times higher than that of twisted-pair cables.
Optical cables can be divided into single-mode fiber (SMF) and multi-mode fiber (MMF).
A single-mode fiber has a small core that allows only one mode of light to propagate at a time.
Multimode cables, on the other hand, have larger cores and are designed to transmit multiple rays or modes simultaneously.
Common single-mode optical cables are OS2 optical cables, and multi-mode optical cables are OM1, OM2, OM3, OM4, and OM5.
And the transmission distance of single-mode optical cable can reach several kilometers, while the transmission distance of multi-mode optical cable can reach 550 meters on 10G network.