| Making and propagation and application of high-energy laser are an important direction of modern laser technology and optics engineering. The primary problem in the design of the high energy laser are, how to keep the stabilization of the optical resonators in the high heat load; how to make the model volume as large as possible and distinguish the transverse models as good as possible, so as to realize the single model operation, distill the energy from the activation matter effectively, keep the beam quality excellent.The dissertation discusses the main characteristics and the controlling methods of the beam quality of the high energy lasers, analyses the optical characteristics of the corner cube mirror and the right angle cone mirror and the influence of the fabricating errors on the optical characteristics of the mirrors, devises the corner cube mirror and the right angle cone mirror applying to the high energy lasers, puts the corner cube mirror and the right angle cone mirror forward as the totally reflecting mirror respectively and the plane parallel mirror as the output mirror forming two new laser resonators, researches the output characteristics of the corner cube mirror cavity and the right angle cone mirror cavity in the theory and experiment aspect.The main research results are as follows.(1)The corner cube mirror cavity and the right angle cone cavity have the large laser energy output. It is linear relation between the gas discharge voltage and the single-pulse output energy both of the two laser cavity, when the voltage is 28kv the single-pulse output energy of the corner-cube cavity and the right angle cone cavity are 14.6J and 25.5J respectively, the same as the output of the plane concave cavity in the same condition.(2)The corner cube mirror cavity and the right angle cone mirror cavity have the great advantages in the anti-misalignment stability. When the misalignment angle of the corner cube mirror is 53.4 minutes, the single-pulse output energy of the corner cube cavity decrease 9.2%, when the misalignment angle of the right angle cone mirror is 46.8 minutes, the single-pulse output energy of the right angle cone mirror cavity decrease 24%, the near-field laser spot figures have little change when both totally reflecting mirrors are misaligned.(3)The corner cube mirror cavity and the right angle cone mirror cavity have the great advantages in the beam directional stability. When the measuring place stands about 3m in front of the output mirrors and the misalignment angles of the corner cube mirror and the right angle cone mirror are 56.4 minutes and 18 minutes respectively, the output laser spots are coincident with the alignment laser spots.(4)The near-field beam intensity distribution of the plane-cone mirror cavity laser and the plane-corner cube mirror cavity laser are near to the plane wave.The corner cube mirror cavity lasers and the right-angle-cone mirror cavity lasers have the great advantages in the anti-misalignment stability and the beam directional stability. With the simple structure, they are easy to install and adjust, will improve the beam quality, especially apply to the high power laser system requiring beam stability.
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