Fiber optic cables and patch cords are able to accomplish tasks of long-distance and high-quality information transmission, playing a dominant role in the global telecommunication network. And as the two main ways of optic fiber communication, single-mode fiber system and multi-mode fiber system also attracted much attention.The main content of this article is the definition, operating principle and main differences between single-mode fiber optic system and multi-mode fiber optic system.

Cloud computing is the cornerstone of the future digital world, and more enterprises have become the leading role of cloud and digitization. 5G, smart city, and industrial internet required higher transimission rate and data storage for data center.High density, high speed and low latency become the