Characteristics of diode pumped Nd:YAG disk laser

The development and current status of solid-state heat capacity lasers are described. The basic principle of a high power solid-state heat capacity laser is introduced. The experimental results of a diode-pumped Nd:YAG heat capacity disk laser are presented. Temperature profile in the gain medium is obtained. An interferogram of the gain medium is described. Fluorescence profile in the gain medium is described. Result indicates such a gain medium has little effect on the wavefront aberration of the beam. An average power of 47.5 W and an optical efficiency of 17% are obtained．