Currently used for transmission network construction of the main fiber what? What are its main features?


There are three main types of G.652 conventional single-mode fiber, G.653 dispersion-shifted single mode fiber and G.655 non-zero dispersion shifted fiber.

The dispersion of G.652 single-mode fiber in the C band of 1530 ~ 1565nm and the L band of 1565 ~ 1625nm is large, generally 17 ~ 22psnm • km. When the system rate reaches 2.5Gbit / s or more, dispersion compensation is needed. At 10Gbit / s System dispersion compensation when the cost is larger, it is the most common transmission network in the laying of a fiber.
Dispersion of G.653 Dispersion Dispersion Fiber in C-band and L-band is generally -1 ~ 3.5psnm • km, it is zero dispersion at 1550nm, the system speed can reach 20Gbit / s and 40Gbit / s, it is the single wavelength long distance transmission Best fiber. However, due to its zero-dispersion characteristics, non-linear effects occur when using DWDM expansion, resulting in signal crosstalk that results in a four-wave mixing FWM, making DWDM unsuitable.
G.655 non-zero dispersion shifted fiber: G.655 non-zero dispersion shifted fiber in the C-band dispersion of 1 ~ 6psnm • km, in the L-band dispersion is generally 6 ~ 10psnm • km, dispersion is small, to avoid the zero Dispersion zone, both suppressed four-wave mixing FWM, DWDM capacity expansion can also be opened high-speed system. The new G.655 optical fiber can expand the effective area to 1.5 ~ 2 times of the general optical fiber. The large effective area can reduce the power density and reduce the nonlinear effect of the optical fiber.

Hot Products


Please leave your Email or phone number, so we can contact you as soon as possible