FTTH (Fiber to the home) is a transmission method of fiber optic communication. It is to directly connect the optical fiber to the user's home (or somewhere the user needs). The significant technical feature of FTTH is that it not only provides greater bandwidth, but also enhances the transparency of the network to data formats, rates, wavelengths and protocols, relaxes the requirements for environmental conditions and power supply, and simplifies maintenance and installation.

The advantages of FTTH are mainly five points: 1. it is a passive network, from the central office to the user, it can basically be passive in the middle; 2. Wide bandwidth and the long distance are just in line with the operator; 3. it is a business carried on optical fibers, there is no problem; 4, wider bandwidth support protocols are more flexible; 5, with the development of technology, Including point-to-point, 1.25G and FTTH methods have developed relatively complete functions.

In the optical access family, there are FTTB (Fiber To The Building), FTTC (Fiber To The Curb), FTTSA (Fiber To The Service Area) and so on.

The optical fiber is directly connected to the user's home, and its bandwidth, wavelength and transmission technology are not limited. It is suitable for introducing various new services. It is the most ideal service transparent network and the ultimate way of access network development.

The charm of fiber-to-the-home lies in its enormous bandwidth, and it is the best solution to solve the "last mile" bottleneck phenomenon from the Internet backbone network to the user's desktop.