Super-Gaussian thermal effect of YVO4-Nd：YVO4 composite crystals

XU Yang-bin, LING Ya-wen. Super-Gaussian thermal effect of YVO4-Nd：YVO4 composite crystals[J]. LASER TECHNOLOGY, 2009, 33(1): 80-82.

Citation:

XU Yang-bin, LING Ya-wen. Super-Gaussian thermal effect of YVO4-Nd：YVO4 composite crystals[J]. LASER TECHNOLOGY, 2009, 33(1): 80-82.

Citation:

XU Yang-bin, LING Ya-wen. Super-Gaussian thermal effect of YVO4-Nd：YVO4 composite crystals[J]. LASER TECHNOLOGY, 2009, 33(1): 80-82.

Abstract

Based on semi-analytical theory,thermal effect of rectangle YVO4-Nd: YVO4 composite crystal end-pumped by the diode laser with super-Gaussian mode was studied through academic analysis and experimental validation.When the output power of diode laser was 15W and the order of the super-Gaussian beam was 2, in the center of the pump-lace of neodymium-doped YVO4-Nd: YVO4 composite crystal, the maximum temperature rise and thermal distortion got up to 175.4℃, 1.97μm respectively.The results show that super-Gaussian model is widely applieable and composite crystals can reduce the top temperature but can't reduce thermal distortion obviously.The result can offer theoretical basis for efficiently resolving the thermal problems in laser systems.