Simulation of Residual Dispersion on Stability of Optical Fiber Frequency Transfer System

Residual dispersion is a key factor affecting the stability of fiber optic frequency transfer system. For long-distance stable frequency transfer, dispersion compensation fiber (DCF) is used to compensate for the dispersion of the fiber link. We simulate a frequency transmission system with different dispersion compensation over a transmission distance of 500 km. The results show a significant increase in frequency stability with decreasing residual dispersion. Compared to dispersion-free compensation, the stability can be improved by two orders of magnitude when dispersion compensation reaches 100%.