Simulation analysis of 3D dynamic thermo-optic effect of solid state heat capacity laser

According to dynamic working characteristics of solid state heat capacity laser, the three dimensional(3D) temperature and thermal stress distribution of cylinder disk heat capacity laser varying with working time is simulated and analyzed using finite difference method. Dynamic variation of thermal distortions and depolarization losses of heat capacity laser is also analyzed. The simulation results are compared with those of continued water-cooled rod laser. Deformation is found to be the main factor of phase distortion for cylinder disk heat capacity laser. Moreover, the depolarization loss increases nonlinearly with the pumping time and pump power.