FTTH fiber to the home, there are P2P (point to point) and PON (passive optical network) two categories. On the surface, PON structure can save fiber and laser devices. However, since PON is a time-division method, the speed of the device is required to increase with the increase of PON's fraction ratio. In the case of a large fraction ratio, a high-speed DFB-LD is needed, whose price is 5-10 times that of a low-speed FP-LD used in P2P. At the same time, there is also an electronic module for ranging. The cost of the device is high, and the gain is not worth the loss. However, on the other hand, PON can save pipeline and reduce construction cost, which is more economical and simple. Therefore, more and more people use PON.
In the optical access family, there are FTTB (fiber to the building) fiber to the building, FTTC (fiber to the curr) fiber to the roadside, fttsa (fiber to the service area) fiber to the service area and so on.
Connecting the optical fiber directly to the user's home has no limitation on its bandwidth, wavelength and transmission technology. It is suitable for introducing various new services. It is an ideal transparent service network and the way of access network development.
Although the development speed of mobile communication is amazing now, due to the limited bandwidth, the terminal volume is unlikely to be too large, the display screen is limited and other factors, people still pursue the fixed terminal with relatively superior performance, that is to say, they want to achieve fiber to home. The charm of fiber to the user lies in its great bandwidth. It is an ideal solution to solve the bottleneck of the last kilometer from the Internet backbone to the user's desktop.
In the reality of breaking the "last kilometer" of broadband access and encountering the technical bottleneck of "ceiling" in speeding up broadband technology based on copper wire, rs-sunnet has launched 100m and gigabit optical fiber network cards to realize the application of 100m and gigabit optical fiber to the desktop, such as ultra fast network operation speed and ultra-high-speed network requirements for storage, download and transmission of data, so as to work and live for users The speed has been greatly improved, the network environment has been optimized, and the optimization and upgrading of people's network life has been realized.
"Optical in and copper out" is a technical update and a complete change of broadband access network. In order to promote the commercial, civil and popularization of "fiber to home", telecommunication enterprises must upgrade the broadband network, operation and maintenance system as a whole. This is a complex system engineering.
The national broadband strategy is helpful for China to concentrate its advantageous resources and overcome the technical problems in the field of optical communication. It has become a global consensus that broadband speed-up depends on the upgrading of technology and broadband access network will be fiber-optic. In terms of key technology innovation, optical network construction and promotion, rs-sunnet has launched high-quality 100m optical fiber network card and gigabit optical fiber network card, providing solutions for users' optical fiber to home and optical fiber to desktop, and has been well received by users.
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