Simulation implementation of erbium-doped fiber laser in the 1550-1600nm band

Erbium-doped fiber lasers are among the crucial subjects in current research. The wavelength of the Erbium-doped fiber laser is matched with the lowest loss window of the communication fiber, and the study of this band is helpful to the communication system and so on. Therefore, according to the rate equation of the erbium-doped fiber laser, the power propagation equation and power threshold equation of the 980nm pump light, the output power equation of the fiber laser, the cross sections of the pump light for emission and absorption, the fiber laser's cross sections for emission and absorption, and the parameters used are obtained. The value of the erbium ion doping concentration was analyzed and discussed using numerical simulation to simulate the experimental process to analyze and discuss the changes in the power output of the erbium-doped fiber laser under the influence of the pump's power and its distribution and signal light power along the fiber length.