Aunique Optical Cavity of ND-YAG High Power Laser Based on Correction Thermal Effect

In this work, an optical cavity was designed and implemented to reduce the thermal effect resulting from the average operating time and cooling cycle. Each operating time is 15 minutes of continuous work, then 15 minutes for the cooling phase (C-PH). Inside the laser material, a series of thermal phenomena are generated by the pumping capacity and the heat of the coolant. We refer to these phenomena as thermal action (PHTA). One of the most important consequences of thermal action is the thermal lens, which modifies the laser spacing and causes power loss at the laser output. The primary objectives of this research are to investigate the thermal action and thermal lens conformation of laser materials, in particular ND-YAG. It seeks to correct the effect of the thermal lens on the laser spacing in the proposed system.