Experiment study of a linearly polarized laser beam of stable intensity by using He-Ne gas laser without Brewster windows

In the experiment study,a bioutput OE prism is used to determine the directions of two perpendicular linear polarized laser beams from a He-Ne laser without Brewster windows. The results show that the intensity stability of the linear polarized laser beam can be much similar to the intensity stability of total laser beam if the prism is at an angle about 45 degree with two perpendicular linear polarized laser beams. In practical applications,the method is convenient,feasible,and worth considering.