Is single-mode fiber the mainstream application of optical fiber transmission?

In transmission mode, transmission distance, coat color, scene application and other aspects there are great differences between single-mode fiber and multi-mode fiber .Although in the current single-mode fiber is the mainstream application of optical fiber transmission, but in the long run, multi-core multi-mode fiber, multi-core fiber, multi-mode fiber is the development trend of optical fiber communication
How to install Integrated Plug-In&Fast Connector PLC Splitter

Prepare some materials to start installing and making this new product