EPON is the best combination of several technology and network structure. EPON uses multipoint structure, passive optical transmission, offers a variety of services over Ethernet. At present, IP/Ethernet applications accounted for more than 95% of the entire LAN communication, EPON since the economic and efficient use of the above-described structure, will become an end-user access network connecting the most efficient communication method.

Fiber access refers to the complete optical fiber as a transmission medium between the central office and the users. Fiber access can be divided into active and passive optical access. Main fiber optic network is lightwave transmission technology. Development of optical transmission multiplexing quite rapidly, most have been in practical use.