An 8-core optical cable consists of eight individual fibers within a single cable jacket. These cables are commonly used for indoor installations where multiple fibers are needed for various applications. From the fiber core and core size to single mode fiber and multimode fiber cables, each type of optical cable serves a specific purpose depending on transmission distance, network. In fiber optic cables, data is transmitted as pulses of light that travel along a thin strand of glass or plastic fiber. multimode fiber in depth, explaining their structure, working principles, standards, and performance characteristics so that you can choose the right one for your system.