Optimization Research Of Temperature Controlling Performance For 532nm Diode Pump Solid-state Laser With Thermoelectric Cooler

532nm DPSS Laser with thermoelectric cooler is widely used in material process, medical treatment and military affairs etc. In order to ensure the stability and reliability of 532nm DPSS Laser, it is very important to set and maintain a stable temperature. So the problem about heat is always the focus of attention.In the paper, the development and application of DPSS laser were introduced simply at the beginning. It is described that temperature control for 532nm DPSS Laser is important. The market condition of 532nm DPSS Laser is introduced. Then it analyzes temperature characteristics of 532nm DPSS Laser and temperature control techniques of 532nm DPSS Laser are compared at present.Next, the principle of thermoelectric cooler was explained and the appliance to use the thermoelectric cooler was introduced. In the 532nm DPSS Laser, the mathematical model of part of temperature control is established. Then, the design process of 532nm DPSS Laser with thermoelectric cooler applies finite element analysis (FEM) method for optimization temperature controlling performance. Using ANSYS, kind of finite element analysis software, did thermal analysis of the temperature controlling structure by steady-state thermal simulation and transient thermal simulation and optimize the structure on the basis of analytic result. The results show that the cooling capacity in the same input, steady-state temperature controlling capacity of the optimized temperature controlling structure arise approximate 8% and action time of transient temperature controlling capacity reduce 33%, a significant improvement over the initial structure.Finally, an experimental device on basis of optimized structure was made and temperature controlling capacity of it has been tested. By comparing the experimental data and ANSYS thermal simulation data, the error is less than 10% each other. The result show that finite element analysis to improve the temperature controlling performance of 532nm DPSS Laser with thermoelectric cooler has a significant effect, towards shortening product development cycles, improve performance, reduce development costs, improve customer satisfaction has importance.