Fiber-to-the-home (FTTH) is a network of glass fiber optic cables that uses light, rather than electrical signals, to transfer data. Compared to other connection types like DSL and cable, fiber offers the highest speeds, delivers the greatest home coverage, and supports more devices per household. However, despite all of these benefits, fiber internet only makes up 1 in 5 internet subscribers in the U.S. today due to the high cost of building fiber-optic infrastructure.