Ehrlichmann, D.D.EhrlichmannHabich, U.U.HabichPlum, H.-D.H.-D.Plum2022-03-032022-03-031993https://publica.fraunhofer.de/handle/publica/18274410.1088/0022-3727/26/2/003A report on the design and performance of a coaxial laser system with a stable resonator with internal axicon is given. Efficient diffusion cooling is obtained by using an annular transverse high- frequency excited discharge. Experimental results are compared with the results of a loaded resonator model that takes tilted mirrors into account. The agreement between theory and experiment for extraction efficiency, alignment sensitivity, polarization and mode structure is very good.endensitydischargelimitationpolarizationpropagationradiationresonatorsymmetry621530journal article