"How long will 25G PON provide enough bandwidth?" - a blog by Nokia

GPON has been enabling 1 Gigabit services for years, but its bandwidth will be exhausted by the end of this decade. This is one reason why operators are rapidly stepping up deployment of XGS-PON. At the same time, commercial services are starting to be lit up on 25G PON, which can co-exist on the same fiber as GPON and XGS-PON, and can provide a true 10G service level, which XGS-PON cannot. Read more via Nokia’s blog.