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The advantages of FTTH are mainly five points: first, it is a passive network, from the end to the user, the middle can basically do passive; because of its wide bandwidth, the supported protocol is more flexible, and fifthly, with the development of technology, including point-to-point, 1.25G and FTTH methods have developed a more complete function.In the Optical Access family, there are FTTB (Fiber To The Building) fiber-to-building, FTTC (Fiber To The Curb) fiber-to-the-road, FTTSA (Fiber To Service Area) fiber-to-service area, and more.

The fiber directly connected to the user’s home, its bandwidth, wavelength and transmission technology are not limited, suitable for the introduction of a variety of new services, is the most ideal business transparent network, is the final way to access the development of the network. Although the speed of mobile communication development is amazing, but because of its limited bandwidth, the terminal volume cannot be too large, display screen restrictions and other factors, people still pursue the performance of relatively superior fixed terminal, that is, hope to achieve fiber-to-the-home.The charm of fiber-to-the-home is that it has great bandwidth, and it is the best solution to the “last kilometer” bottleneck from the Internet backbone to the user’s desktop.

Today’s mobile device users rely on wireless connectivity for voice, data, and even video communications. Even homes and businesses may rely on wireless technology, especially for those who are not in urban or suburban FTTH (fiber-to-home) or FTTC (fiber-to-the-roadside) services.

Some of us now use the term FTTW as fiber wireless, because no matter what type of wireless we use, wireless relies on fiber optics for communication backbones and is increasingly connected to wireless antennas. Wireless is not completely wireless. The easiest way to learn about wireless is to think of it as a link to replace the cable that connects a cellular or wireless phone to a phone system, or to connect a computer or other portable Internet device to the network. To understand wireless, it is necessary to study several different and unique types of wireless systems, including cellular wireless phones, wireless indoor cabling, municipal or private wireless links, and even some short-range links for computer peripheral connections.

Today’s data center market requires extensive use of optical module products to connect servers, switches, and storage devices. Bandwidth and bandwidth characterization remain critical for multimode fiber applications. Industry organizations and manufacturers are working together to develop standards to develop more accurate ways to characterize the actual performance of fiber optics. For example, in TIA, the meaning and value of VCSEL weights are re-evaluated, which is critical to estimating fiber bandwidth.

In IEEE802.3, the limitations of THE PAM-4 multi-wavelength transmission and the new link model are being studied. The basic part of any fiber optic cable is the connector. The impact of the connector is critical. Poor connectors affect the system not only by introducing low noise, but more importantly by reducing bandwidth capacity. Noise or bandwidth losses can be several times higher than losses. As a result, people are actively involved in all standards to ensure that the standards for fiber and connectors are consistent with system performance.

The application field of optical fiber communication is very wide, mainly used for the municipal telephone trunk line, the advantages of optical fiber communication can be fully developed here, gradually replace the cable, has been widely used. Also used for long-distance trunk communications, which used to rely mainly on cables, microwaves and satellite communications, is now being used to gradually use optical fiber communications and to form a global advantage of bit transmission methods; industrial production on-site monitoring and dispatch, traffic surveillance control command, urban cable television network, common antenna (CATV) system, for fiber-optic LAN and other use in aircraft, ship, ship, mine, power sector, military and corrosive and radiation.

The fiber optic transmission system is mainly composed of optical transmitter, optical receiver, optical cable transmission line, optical repeater and a variety of passive optical devices. To achieve communication, the baseband signal must also be processed by the electric end machine and sent to the optical fiber transmission system to complete the communication process.

Hybrid fiber coaxial network (HFC network) is a telecommunications technology that transmits broadband content such as video, data, and voice by mixing fiber and coaxial cables at different proportions. Hybrid fiber coaxial network (HFC network) is a telecommunications technology that transmits broadband content such as video, data, and voice by mixing fiber and coaxial cables at different proportions.

Using a hybrid fiber coaxial network, a local limited television (CATV) operator can connect to switching centers and commercial network nodes with fiber optics, as well as close individual users, using coaxial cables to connect small companies and other individual users. The advantage of this networking approach is that it can take advantage of the high bandwidth and low noise characteristics of fiber optics without replacing existing coaxial cables on the user side.