Dispersion compensation on the fiber optic transmission speed mainly has the following effects.
1. Remove the dispersion effect, expanding the information bandwidth.
Dispersion makes different frequency components produce time delay, limiting the signal transmission bandwidth of optical fiber. Dispersion compensation removes this limitation, the bandwidth can be expanded.
2. Increase the transmission capacity of single-mode fiber.
Without dispersion bandwidth limitation, the theoretical transmission capacity of a single-mode fiber can be increased to the order of Tbps per core.
3. Increase the transmission distance of fiber optic network.
Dispersion compensation signal quality degradation is slower, improve the fiber transmission distance limit, under the same conditions, the transmission distance can be greater than uncompensated fiber.
4. Realize higher speed digital signal transmission.
For example, through the dispersion compensation to achieve more than 100Gbps high-speed optical transmission.
5. Reduce the need for repeaters.
Due to the large transmission distance and small signal distortion, the frequency of the relay signal is reduced, which reduces the use of repeaters.
6. Favor the development of WDM technology.
WDM system has very high dispersion requirements, and dispersion compensation is one of its key technologies.
So in general, dispersion compensation to improve the fiber optic transmission rate, distance and capacity are very good to enhance the role.
