Steady state numerical model of a Q-switched double-clad fiber laser

Abstract

The power density characteristics of a Q-switched neodymium doped double-clad fiber laser are presented. a steady state numerical model is developed to simulate this fiber laser. First, the mathematical model governing the dynamic behavior of the fiber laser is developed and then the equations are solved by the finite difference method. The results of the numerical simulation are used to determine the characteristics of the device such as the power density in cavity and out put power per input pump power.