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Solid-state heat capacity laser is developed in recent years a new generation of solid-state lasers with output power, beam quality, compact and simple structure , and easy to implement proportional power amplification , etc., is expected to achieve optical excitation , energy-saving , high power , high-brightness laser output is one effective means . Therefore, the solid heat capacity laser in industry and so has a very important application value. This paper describes the development of heat capacity laser , the basic principles and techniques , carried out on the heat capacity laser theoretical analysis and calculations , including: solid-state heat capacity laser affect the efficiency of energy conversion factors ; heat capacity mode laser output time work material internal temperature distribution and stress distribution ; doping concentration on work material internal stress distribution and so on. On this basis, the completion of a single oval structure condenser heat capacity laser prototype design , completed the resonator design and heat capacity laser thermal management system analysis. In this thesis, the ellipse major axis 2a = 44mm, the eccentricity e = 0.45; with Nd: YAG crystal rod of the working substance , the size as F5 × 50mm; using a xenon lamp pumped straight tube , the lamp arc size F5 × 50mm, lights and stick by focus configuration. After processing the various components of the finished product for the laser alignment , made a preliminary experiment , to achieve the heat capacity mode laser output , and the results were analyzed , and achieved certain results. Heat capacity mode laser output achieved is another breakthrough in solid-state laser , demonstrated its strong vitality and bright prospects.
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