Fiber optic connectors are used to connect fiber optic cables to devices, such as transceivers, routers, switches, and media converters. Glossary | Related Components | Related Tech Spotlight | Take the Quiz See Terms 1. They are also divided into single-mode and multimode types based on their distinct characteristics. Over time, about 100 different types of optical. Fiber optic technology has become the backbone of modern communication, powering everything from high-speed internet to cloud data centers and 5G networks. Their performance directly affects signal integrity in modern optical networks.